Pane background colors
From MozillaZine Knowledge Base
You can change the background colors in Thunderbird's (or Mozilla Suite's) preview pane, folders pane, and thread pane (message-list pane), etc. by modifying your prefs.js and userChrome.css files as described below.
For the preview pane, put this in your "prefs.js" file:
// Previewpane Background color user_pref("browser.display.background_color", "#F1F1F1");
For the folders pane and thread pane, put this in your "userChrome.css" file:
/* Folderpane & Messagepane */ treechildren { background-color: #F1F1F1 !important; }
For other color codes, you can use this color blender.
External links
- Add alternating background colors in the thread pane.