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<p>Just published version <code>1.3.0</code> of <a href="https://protesilaos.com/emacs/modus-themes">the Modus themes</a>.
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The detailed release notes are reproduced below. For any questions
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pertaining to this publication feel welcome to <a href="https://protesilaos.com/contact/">contact me</a>.</p>
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<p>My immediate task now is to prepare patches for upstream Emacs
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(Emacs28). GNU ELPA syncs directly from emacs.git, so expect an update
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shortly thereafter.</p>
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<hr />
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<h2>Modus themes version 1.3.0</h2>
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<p>By Protesilaos Stavrou <a href="mailto:info@protesilaos.com">info@protesilaos.com</a> on 2021-04-17</p>
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<p>This entry records the changes introduced to the project since the
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publication of version 1.2.0 (2021-03-04). There have been around 100
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commits in the meantime, as is the norm with all releases hitherto.</p>
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<p>Every colour-related modification documented herein conforms with the
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overarching accessibility objective of the themes for a minimum contrast
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ratio of 7:1 between background and foreground values in their given
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combination (the WCAG AAA standard).</p>
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<p>As the official manual is referenced several times throughout this log,
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make sure to store its URL: <a href="https://protesilaos.com/emacs/modus-themes">https://protesilaos.com/emacs/modus-themes</a>. Or
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read it from Emacs’ Info reader by evaluating this form:</p>
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<pre><code>(info "(modus-themes) Top")
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</code></pre>
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<p>If you are coming from older versions, please consult the change log
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entry for version 1.0.0 with regard to the breaking changes that were
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introduced.</p>
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<p>Remember that the themes are built into Emacs28, and are available on
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GNU ELPA, as well as other archives.</p>
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<h2>Customisation options</h2>
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<ul>
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<li>
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<p>The old <code>modus-themes-intense-hl-line</code> boolean variable has been
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replaced by <code>modus-themes-hl-line</code>, which provides several options for
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how to style the current line of <code>hl-line-mode</code>. To retain the old
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effect, one must do this:</p>
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<pre><code>;; Replacement for (setq modus-themes-intense-hl-line t)
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(setq modus-themes-hl-line 'intense-background)
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</code></pre>
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<p>The list of possible values:</p>
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<ol>
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<li>nil (default)</li>
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<li>intense-background</li>
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<li>accented-background</li>
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<li>underline-neutral</li>
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<li>underline-accented</li>
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<li>underline-only-neutral</li>
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<li>underline-only-accented</li>
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</ol>
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<p>The doc string of <code>modus-themes-hl-line</code> as well as the manual
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describe the specifics. Thanks to Manuel Uberti for the feedback in
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commit b020592:
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<a href="https://gitlab.com/protesilaos/modus-themes/-/commit/b020592e1a96d6e00d7d03faf9c293ec6081d49c">https://gitlab.com/protesilaos/modus-themes/-/commit/b020592e1a96d6e00d7d03faf9c293ec6081d49c</a>.</p>
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</li>
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<li>
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<p>The <code>modus-themes-mode-line</code> variable now accepts three new “accented”
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styles that complement the existing set:</p>
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<ol>
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<li>nil (default)</li>
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<li>3d</li>
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<li>moody</li>
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<li>borderless</li>
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<li>borderless-3d</li>
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<li>borderless-moody</li>
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<li>accented</li>
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<li>accented-3d</li>
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<li>accented-moody</li>
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</ol>
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</li>
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<li>
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<p>The <code>modus-themes-region</code> is extended with two new options of an
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“accent” background:</p>
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<ol>
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<li>nil (default)</li>
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<li>no-extend</li>
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<li>bg-only</li>
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<li>bg-only-no-extend</li>
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<li>accent</li>
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<li>accent-no-extend</li>
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</ol>
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</li>
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<li>
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<p>The default value of <code>modus-themes-headings</code> for per-level styles can
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now be set to nil. This fixes an inconsistency between the fallback
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value, which accepted nil, and the per-level styles which did not.
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Thanks to Mauro Aranda for reporting this in issue 163:
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<a href="https://gitlab.com/protesilaos/modus-themes/-/issues/163">https://gitlab.com/protesilaos/modus-themes/-/issues/163</a>.</p>
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<p>Please read the manual for the specifics of this variable, as it is an
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alist that accepts several possible combinations.</p>
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</li>
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</ul>
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<h2>Updates to the manual</h2>
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<ul>
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<li>
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<p>Rewrote the sections that cover the aforementioned customisation
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options.</p>
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<ul>
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<li>For <code>modus-themes-mode-line</code>, we had to revise the recommendation
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for setting <code>face-near-same-color-threshold</code> to 45000. That value
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is appropriate for the <code>moody</code> and <code>borderless-moody</code> options.
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Whereas for <code>accented-moody</code> the number should be raised to 70000.
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Thanks to Nicolas De Jaeghere for providing this piece of
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information:
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<a href="https://gitlab.com/protesilaos/modus-themes/-/commit/ab6ba698269f012ec880b690282264649bfb3b0d#note_551342198">https://gitlab.com/protesilaos/modus-themes/-/commit/ab6ba698269f012ec880b690282264649bfb3b0d#note_551342198</a></li>
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</ul>
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</li>
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<li>
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<p>Rephrased the GNU Free Documentation License quote to match the style
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of other manuals that are also built into Emacs.</p>
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</li>
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<li>
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<p>Documented <code>org-mode</code> variables that affect the looks of various
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fontification styles.</p>
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</li>
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<li>
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<p>Simplified the <code>kbd</code> macro that is declared in modus-themes.org to
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allow GNU ELPA’s build system to parse the file for Emacs 26.</p>
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</li>
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<li>
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<p>Documented existing support for <code>tab-bar-mode</code> and <code>tab-line-mode</code>.</p>
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</li>
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<li>
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<p>Wrote a note on how to configure the <code>dimmer.el</code> library by Neil
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Okamoto, in order to guarantee consistent results with the themes.
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The key is to use the RGB colour space instead of CIELAB.</p>
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</li>
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<li>
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<p>Included note on shr.el fonts and how those are used by EWW and
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Elfeed.</p>
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</li>
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<li>
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<p>Added a “Do-It-Yourself” (DIY) section on how to remap buffer-local
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faces.</p>
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</li>
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<li>
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<p>Detailed a DIY method to make the buffer-local backdrop of a pdf-tools
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page use a distinct colour than the default white for Modus Operandi.
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Extended the same principle to Modus Vivendi and described how to
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adapt to theme changes (such as via <code>modus-themes-toggle</code>). Thanks to
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Utkarsh Singh for providing feedback on this topic in issue 175:
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<a href="https://gitlab.com/protesilaos/modus-themes/-/issues/175">https://gitlab.com/protesilaos/modus-themes/-/issues/175</a>.</p>
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</li>
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<li>
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<p>Elaborated on DIY techniques to programmatically override the
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saturation of all colours specified by the active Modus theme. Thanks
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to user pRot0ta1p for the feedback in issue 166:
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<a href="https://gitlab.com/protesilaos/modus-themes/-/issues/166">https://gitlab.com/protesilaos/modus-themes/-/issues/166</a>.</p>
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</li>
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</ul>
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<h2>Support for packages</h2>
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<p>These are added to the already comprehensive list of explicitly
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supported packages:</p>
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<ul>
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<li>corfu</li>
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<li>
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<p>embark</p>
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</li>
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<li>
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<p>pandoc-mode. Thanks to Farasha Euker for the feedback in issue 171:
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<a href="https://gitlab.com/protesilaos/modus-themes/-/issues/171">https://gitlab.com/protesilaos/modus-themes/-/issues/171</a>.</p>
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</li>
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<li>tab-bar-groups</li>
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<li>telega</li>
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<li>vertico</li>
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</ul>
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<p>Also added support for the <code>help-key-binding</code> face which is part of
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Emacs 28.</p>
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<h2>Changes to already supported faces or face groups</h2>
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<ul>
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<li>
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<p>Renamed all internal faces that the themes defined from
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“modus-theme-<em>” to “modus-themes-</em>”.</p>
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</li>
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<li>
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<p>Refashioned all Ediff faces in the process of a major review of this
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tools’ overall design. The manifold changes are:</p>
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<ul>
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<li>
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<p>All inactive diffs respect the underlying fontification
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(e.g. programming syntax highlighting). Before they would override
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it with a gray foreground.</p>
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</li>
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<li>
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<p>All inactive diffs have been toned down, as their background is a
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finer shade of gray than the prominent one that was used before.</p>
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</li>
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<li>
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<p>There no longer is a visual distinction between even and odd
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inactive diffs (by means of different shades of gray). We are of
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the opinion that such subtleties, whose utility is marginal at best,
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have no place in themes that are designed for accessibility.</p>
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</li>
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<li>
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<p>All bespoke gray colour combinations that were only intended for
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those inactive diffs have thus been removed from each theme’s
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palette.</p>
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</li>
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<li>
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<p>Active diffs follow the same style as diff-mode, to ensure
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theme-wide consistency (all diff styles are controlled by the
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variable <code>modus-themes-diffs</code>).</p>
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</li>
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</ul>
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<p>This topic was discussed at length (with screenshots) in issue 169:
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<a href="https://gitlab.com/protesilaos/modus-themes/-/issues/169">https://gitlab.com/protesilaos/modus-themes/-/issues/169</a>. Thanks to
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peniblec and Nicolas De Jaeghere for their feedback.</p>
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</li>
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<li>
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<p>Made <code>smerge-markers</code> and <code>vdiff-closed-fold-face</code> look like the
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headings in <code>diff-mode</code> in the interest of consistency, especially
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while configuring the <code>modus-themes-diffs</code> variable.</p>
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</li>
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<li>
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<p>Ensured consistency between all faces that pertain to key bindings in
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contexts where the hint to the key is active, in that pressing the key
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performs the action (e.g. Magit’s transient buffers, which-key,…).
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The <code>help-key-binding</code> for Emacs 28 is not included in this group,
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because it applies in cases where the keys are not active, such as in
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Help buffers.</p>
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</li>
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<li>
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<p>Refined <code>epa-validity-disabled</code> and <code>epa-validity-high</code> faces. The
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former no longer uses a background, as that was considered an
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exaggeration. While the latter is cast in a cyan hue instead of green
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for greater clarity (this relates to the general push to optimise for
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red-green colour deficiency, which means to only use green where it is
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absolutely necessary and, in such cases, to provide for a blue-ish
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alternative, as with the <code>deuteranopia</code> value that can be assigned to
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<code>modus-themes-diffs</code>).</p>
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</li>
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<li>
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<p>Reworked <code>ace-window</code>, <code>avy</code>, and <code>magit-blame</code> faces to ensure that
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their overlays do not inherit the face properties of underlying text,
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such as a different font family or height. Thanks to Nicolas De
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Jaeghere for the multiple merge requests and the concomitant feedback:</p>
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<ul>
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<li><a href="https://gitlab.com/protesilaos/modus-themes/-/merge_requests/27">https://gitlab.com/protesilaos/modus-themes/-/merge_requests/27</a>.</li>
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<li><a href="https://gitlab.com/protesilaos/modus-themes/-/merge_requests/29">https://gitlab.com/protesilaos/modus-themes/-/merge_requests/29</a>.</li>
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<li><a href="https://gitlab.com/protesilaos/modus-themes/-/merge_requests/30">https://gitlab.com/protesilaos/modus-themes/-/merge_requests/30</a>.</li>
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<li><a href="https://gitlab.com/protesilaos/modus-themes/-/merge_requests/31">https://gitlab.com/protesilaos/modus-themes/-/merge_requests/31</a>.</li>
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<li><a href="https://gitlab.com/protesilaos/modus-themes/-/merge_requests/32">https://gitlab.com/protesilaos/modus-themes/-/merge_requests/32</a>.</li>
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</ul>
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<p>Also thanks to Damien Cassou for reporting an intermediate problem
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with <code>avy</code> in issue 177; a problem that was eventually addressed by
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Nicolas De Jaeghere in merge request 31 (cited above):
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<a href="https://gitlab.com/protesilaos/modus-themes/-/issues/177">https://gitlab.com/protesilaos/modus-themes/-/issues/177</a>.</p>
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</li>
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<li>
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<p>Optimised the colour combinations used by <code>avy</code> to improve the
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distinction between consecutive characters.</p>
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</li>
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<li>
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<p>Reduced the brightness of EWW certificate faces, as they would attract
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disproportionate attention to themselves.</p>
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</li>
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<li>
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<p>Reworked all EWW text field and button faces to look more like what
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they are supposed to.</p>
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</li>
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<li>
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<p>Removed the slant and distinct foreground from the <code>org-quote</code> face,
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as they would interfere with emphasis within the quote block. Thanks
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to Farasha Euker for the feedback in issue 171:
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<a href="https://gitlab.com/protesilaos/modus-themes/-/issues/171">https://gitlab.com/protesilaos/modus-themes/-/issues/171</a>.</p>
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</li>
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<li>
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<p>Reduced the intensity in colouration of <code>org-code</code> and <code>org-macro</code> in
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order to avoid exaggerations and prevent their compounding effect in
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technical documents that include a high concentration of those faces.
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They still retain their overall character and continue to look like
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variants of <code>org-verbatim</code>.</p>
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</li>
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<li>
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<p>Extended support for Selectrum’s new <code>selectrum-quick-keys-highlight</code>
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and <code>selectrum-quick-keys-match</code>.</p>
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||
</li>
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<li>
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<p>Adjusted a few bongo faces for improved consistency and a more
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pleasant result overall. Quote from commit 07224cda08:</p>
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<pre><code>Refine bongo faces for consistency
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The previous design was meant to keep the track fields distinct
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from each other. However the use of yellow was not good
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aesthetically: it does not fit with the rest of the theme.
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Upon further experimentation, I realised that the album field
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(yellow) is only present when the artist and title fields are also
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available: first is the title, then the artist, and finally the
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album. This is true even with `bongo-join-inserted-tracks` set to
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a non-nil value. So changing the face from yellow to a neutral
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value is safe.
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The other two faces are adapted to look better in the new context.
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||
</code></pre>
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</li>
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<li>
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<p>Made more command prompt faces respond to changes in the variable
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<code>modus-themes-prompts</code>. This concerns faces from the groups cider,
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circe, erc, indium, rcirc.</p>
|
||
</li>
|
||
<li>
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<p>Refashioned typescript faces, making them more prominent by default,
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||
while also exposing them to the value of <code>modus-themes-syntax</code>.</p>
|
||
</li>
|
||
<li>
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<p>Revised the style of <code>info-colors-ref-item-command</code>. This makes
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commands look the same as functions, which is technically correct. It
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||
also predicates the exact style on the value of the variable
|
||
<code>modus-themes-syntax</code>.</p>
|
||
</li>
|
||
<li>
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||
<p>Made all enh-ruby-mode faces adapt to <code>modus-themes-syntax</code>. Same for
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julia.</p>
|
||
</li>
|
||
<li>
|
||
<p>Reconfigured all ztree faces for stylistic consistency. The
|
||
<code>ztreep-diff-model-add-face</code> now responds to the <code>deuteranopia</code> value
|
||
that can be passed to <code>modus-themes-diffs</code>.</p>
|
||
</li>
|
||
<li>
|
||
<p>Appended the <code>:extend t</code> attribute to <code>gnus-summary-cancelled</code> and
|
||
<code>gnus-summary-selected</code>. These are only noticeable on Emacs 28
|
||
following commit 88409b21c2 in emacs.git.</p>
|
||
</li>
|
||
<li>
|
||
<p>Tweaked all faces of <code>highlight-changes-mode</code> to better deliver on the
|
||
intent of that mode.</p>
|
||
</li>
|
||
<li>
|
||
<p>Opted to unconditionally render all <code>dired-async</code> faces in a bold
|
||
typographic weight, instead of basing them on a non-nil value for
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||
<code>modus-themes-bold-constructs</code>. Also changed <code>dired-async-message</code> to
|
||
a blue foreground, which further improves the themes’ performance for
|
||
red-green colour deficiency.</p>
|
||
</li>
|
||
<li>
|
||
<p>Adjusted the colours of some <code>notmuch-crypto-*</code> faces to better convey
|
||
their meaning.</p>
|
||
</li>
|
||
<li>
|
||
<p>Removed remaining conditional logic for underline styles in some
|
||
spell- and linter- related faces to ensure that all such cases are
|
||
controlled by the variable <code>modus-themes-lang-checkers</code> (building on
|
||
work that had been done in the past).</p>
|
||
</li>
|
||
<li>
|
||
<p>Stopped changing <code>keycast-key</code> to match the modeline style, as that
|
||
diluted the meaning of the variable <code>modus-themes-mode-line</code>.</p>
|
||
</li>
|
||
<li>
|
||
<p>Tweaked calendar and diary faces for stylistic effect, except for the
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<code>diary</code> face which has been converted from a green to a blue variant
|
||
for the purposes of coping with cases of red-green colour deficiency.</p>
|
||
</li>
|
||
</ul>
|
||
|
||
<h2>Miscellaneous</h2>
|
||
|
||
<ul>
|
||
<li>
|
||
<p>Clarified the changes in the backward-incompatible transition from
|
||
version 0.13.0 of the themes to >= 1.0.0. Thanks to Damien Cassou for
|
||
reporting the absence of easy-to-find information in issue 174:
|
||
<a href="https://gitlab.com/protesilaos/modus-themes/-/issues/174">https://gitlab.com/protesilaos/modus-themes/-/issues/174</a>.</p>
|
||
</li>
|
||
<li>
|
||
<p>There were three point releases after 1.2.0 which refined certain
|
||
aspects of the themes’ packaging so that they could work both as
|
||
built-in themes for Emacs as well as in package format via the likes
|
||
of GNU ELPA. Those issues were eventually resolved by Basil
|
||
L. Contovounesios:</p>
|
||
|
||
<ul>
|
||
<li>Issue 162: <a href="https://gitlab.com/protesilaos/modus-themes/-/issues/162">https://gitlab.com/protesilaos/modus-themes/-/issues/162</a>.</li>
|
||
<li>Emacs bug#45068: <a href="https://debbugs.gnu.org/cgi/bugreport.cgi?bug=45068#218">https://debbugs.gnu.org/cgi/bugreport.cgi?bug=45068#218</a>.</li>
|
||
</ul>
|
||
</li>
|
||
<li>
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||
<p>Rewrote the <code>modus-themes-headings</code> variable’s declaration to improve
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||
its presentation in Custom interfaces. Thanks to Mauro Aranda for
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||
submitting the patch for commit 1c60927ebd.</p>
|
||
</li>
|
||
<li>
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||
<p>Applied the <code>:format</code> keyword to all <code>defcustom</code> forms, based on the
|
||
aforementioned patch. This should make all options look better in the
|
||
various Custom interfaces. Thanks to Mauro Aranda for the feedback in
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||
issue 163: <a href="https://gitlab.com/protesilaos/modus-themes/-/issues/163">https://gitlab.com/protesilaos/modus-themes/-/issues/163</a>.</p>
|
||
</li>
|
||
<li>
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||
<p>Refined the colour values <code>bg-alt</code> and <code>bg-dim</code> in <code>modus-vivendi</code> to
|
||
improve their instantiation on Textual User Interfaces. In
|
||
particular, recalibrated the blue channel of light so that when the
|
||
TUI cannot render the colour directly, it defaults to a gray value
|
||
instead of a dark blue.</p>
|
||
</li>
|
||
<li>
|
||
<p>Added a “Last-Modified” meta header to modus-themes.el, with gets
|
||
updated automatically and uses a timestamp. This helps users who
|
||
track the themes’ git repo directly. Thanks to Togan Muftuoglu for
|
||
the feedback in issue 168:
|
||
<a href="https://gitlab.com/protesilaos/modus-themes/-/issues/168">https://gitlab.com/protesilaos/modus-themes/-/issues/168</a>.</p>
|
||
</li>
|
||
<li>
|
||
<p>Expanded the palette of each theme with accent values that are
|
||
reserved for use in the tab-bar. Those are used by the newly
|
||
supported <code>tab-bar-groups</code> package.</p>
|
||
</li>
|
||
<li>
|
||
<p>Recalibrated a few colour combinations to improve their resulting
|
||
legibility. The changes should not be noticeable to the untrained
|
||
eye. Interested parties can consult commit 349ea4a943.</p>
|
||
</li>
|
||
<li>
|
||
<p>Tweaked the hueness of the <code>yellow-active</code> colour of <code>modus-operandi</code>.</p>
|
||
</li>
|
||
</ul>
|
||
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||
<p>Thanks once again to everyone involved!</p>
|
||
|
||
|