dark theme tweaks

src/scss/base.scss

@@ -14,6 +14,9 @@ html, body {
 }
 
 body {
+    color: $text-color;
+    background-color: $background-color-alt2;
+
     @include themify($themes) {
         color: themed('textColor');
         background-color: themed('backgroundColorAlt2');