feat: add Protanopia & Deuteranopia

close: #18

theme.css

@@ -3,7 +3,20 @@
 name: GitHub theme settings
 id: id
 settings:
+    -
+        # Colorblind 
+
+        id: colorblind
+        title: Colorblind variants
+        type: heading
+        level: 1
+        collapsed: true
     - 
+        id: colorblind_protan-deutan
+        title: Protanopia & Deuteranopia
+        type: class-toggle
+        default: off
+    -
 
         # Callout Settings
 
@@ -778,6 +791,28 @@ body {
     --kanban-options-btn: var(--background-primary-alt);
 }
 
+
+body.colorblind_protan-deutan.theme-dark {
+    --color-red-rgb: 253, 172, 84;
+    --color-red: #fdac54;
+    --color-green-rgb: 165, 214, 255;
+    --color-green: #a3d6ff;
+    --color-orange: #fdac54;
+
+    --color-btn-primary-bg: #1f6feb;
+    --color-btn-primary-hover-bg: #388bfd;
+}
+body.colorblind_protan-deutan.theme-light {
+    --color-red-rgb: 179, 89, 0;
+    --color-red: #b35900;
+    --color-green-rgb: 33, 139, 255;
+    --color-green: #218bff;
+    --color-orange: #dd7815;
+
+    --color-btn-primary-bg: #218bff;
+    --color-btn-primary-hover-bg: #0969da;
+}
+
 /* Tables */
 .markdown-rendered td, 
 .markdown-rendered th {