css/main.scss: prefer dark over light

_sass/_base.scss

@@ -145,7 +145,8 @@ code {
   font-family: $monospace-font-family;
   border: 1px solid $grey-color-light;
   border-radius: 3px;
-  background-color: #eef;
+  //background-color: #eef;
+  background-color: revert;
 }
 
 code {

css/main.scss

@@ -49,6 +49,22 @@ $on-laptop: 800px;
   }
 }
 
+// As high in css as can be edited. If I understand correctly, user
+// preference will take priority over this, but if the user hasn't expressed
+// it, this will make dark default.
+:root {
+  color-scheme: dark light;
+}
+
+// This is the missing content blocker detection
+.ftf-dma-note {
+  // It doesn't want to turn dark and still uses text colors more suitable
+  // for dark.
+  color-scheme: only light;
+  //display: block !important;
+  //pointer-events: all !important;
+}
+
 // Import partials from `sass_dir` (defaults to `_sass`)
 @import "base", "layout", "syntax-highlighting";