refactor: replace SCSS stylesheets with equivalent Quarto extension

_extensions/njlyon0/lyon_theme/_extension.yml

@@ -0,0 +1,10 @@
+title: Lyon's Quarto Stylesheet
+author: Nick J Lyon
+version: 1.1.0
+quarto-required: ">=1.2.0"
+contributes:
+  formats:
+    revealjs:
+      theme:
+        light: lyon_light.scss
+        dark: lyon_dark.scss

lyondark.scss → _extensions/njlyon0/lyon_theme/lyon_dark.scss

@@ -30,15 +30,14 @@ $navbar-hl: $blue-3; // highlight color when on a page
 $body-bg: $gray-4; // page background
 $body-color: $cream; // page text
 $footer-bg: $blue-3; // footer
-$footer-text: $cream; // footer text
 $link-color: $blue-2; // hyperlinks
 
 // Inline code
 $code-bg: $gray-3; // inline code background color
 $code-color: $cream; // inline code text color
 
 // Code blocks
-$code-block-bg: $blue-3; // code block background color
+$code-block-bg: $blue-4; // code block background color
 
 /*-- scss:rules --*/
 
@@ -57,3 +56,9 @@ pre code:not(.sourceCode) { background-color: $gray-0; }
   --bs-dropdown-link-hover-color: #191919;
   --bs-dropdown-link-hover-bg: #077DC2;
 }
+
+// Code language semantic text colors
+.r { color: $orange-3; }
+.py { color: $blue-3; }
+.sql { color: $blue-4; }
+.cli {color: $orange-4; }

lyonlight.scss → _extensions/njlyon0/lyon_theme/lyon_light.scss

@@ -30,7 +30,6 @@ $navbar-hl: $blue-3; // highlight color when on a page
 $body-bg: $cream; // page background
 $body-color: $black; // page text
 $footer-bg: $blue-2; // footer
-$footer-text: $cream; // footer text
 $link-color: $blue-2; // hyperlinks
 
 // Inline code
@@ -57,3 +56,9 @@ pre code:not(.sourceCode) { background-color: $blue-1; }
   --bs-dropdown-link-hover-color: #F4F3EE;
   --bs-dropdown-link-hover-bg: #01BAEF;
 }
+
+// Code language semantic text colors
+.r { color: $orange-3; }
+.py { color: $blue-3; }
+.sql { color: $blue-4; }
+.cli {color: $orange-4; }

_quarto.yml

@@ -79,8 +79,8 @@ format:
     code-line-numbers: false
     code-copy: hover
     theme:
-      light: lyonlight.scss
-      dark: lyondark.scss
+      light: _extensions/njlyon0/lyon_theme/lyon_light.scss
+      dark: _extensions/njlyon0/lyon_theme/lyon_dark.scss
     mainfont: Open Sans
     toc: true
     link-external-newwindow: true