Revert "Dim bright white backgrounds for easier viewing"

This reverts commit 678bdf3a70.

static/style.css

@@ -39,22 +39,6 @@ body {
   margin: 0;
 }
 
-/* Dim white backgrounds for easier viewing */
-input[type="text"],
-textarea,
-select {
-  background: #f5f5f5 !important;
-}
-
-.window-body {
-  background: #f0f0f0;
-}
-
-.transcript,
-.full-transcript {
-  background: #f5f5f5 !important;
-}
-
 /* Channel dropdown custom styling */
 .channel-dropdown {
   position: relative;