Set background for dark color theme to #111

CHANGES.md

@@ -5,6 +5,8 @@
 
 - Increase top margin of heading elements from `1em` to `1.25em` to
   create more separation from the preceding content.
+- Set the background color of dark color theme to a darker shade of
+  gray (`#111`).
 
 
 0.7.0 (2021-04-20)

sp.css

@@ -78,8 +78,8 @@ th, td {
 }
 @media (prefers-color-scheme: dark) {
   body {
+    background: #111;
     color: #bbb;
-    background: #222;
   }
   a:link {
     color: #9bf;
@@ -97,13 +97,13 @@ th, td {
     color: #6cf;
   }
   pre kbd {
-    color: #9c9;
+    color: #9c6;
   }
   pre, blockquote {
-    background: #111;
+    background: #000;
   }
   blockquote {
-    border-color: #444;
+    border-color: #333;
   }
   th, td {
     border-color: #666;