fix(keybr.com): darken lesson keys colors (#1402)

Co-authored-by: Tadeas Uradnik <[email protected]>

styles/keybr.com/catppuccin.user.css

@@ -2,7 +2,7 @@
 @name keybr.com Catppuccin
 @namespace github.com/catppuccin/userstyles/styles/keybr.com
 @homepageURL https://github.com/catppuccin/userstyles/tree/main/styles/keybr.com
-@version 0.0.1
+@version 0.0.2
 @updateURL https://github.com/catppuccin/userstyles/raw/main/styles/keybr.com/catppuccin.user.css
 @supportURL https://github.com/catppuccin/userstyles/issues?q=is%3Aopen+is%3Aissue+label%3Akeybr.com
 @description Soothing pastel theme for keybr.com
@@ -118,7 +118,9 @@
     --Value--less__color: @red;
     --KeyboardKey-button--depressed__color: @accent-color;
     --LessonKey--included__color: @crust;
-    --LessonKey--excluded__color: @crust;
+    --LessonKey--uncalibrated__background-color: @surface0;
+    --LessonKey--excluded__background-color: @surface0;
+    --LessonKey--excluded__color: @overlay0;
     --DailyGoal-bar__color: @accent-color;
     --KeyboardKey-button__color: @accent-color;
     --textinput__color: @text;