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+         
+         <p>Raw link: <a href="https://www.youtube.com/watch?v=9SBGoPBIUJ0">https://www.youtube.com/watch?v=9SBGoPBIUJ0</a></p>
+         
+         <p>In this screen cast, I present a new script I wrote that compares the
+contrast ratio between two colours.  The script is called CLR
+(conveniently pronounced as “colour”), which stands for “Check
+Luminance Ratio”.</p>
+
+<p>The code of CLR makes heavy of Bash parameter expansion.  It helps me
+practice some of my shell scripting skills.</p>
+
+<p>In the screen cast I also offer a primer on colours in the RGB space and
+talk a little bit about accessibility.</p>
+
+<p>CLR is part of <a href="https://gitlab.com/protesilaos/dotfiles">my dotfiles</a>
+and is licensed under the GPLv3 (as is the rest of the code).</p>
+        
+