diff --git a/chrome/userChrome.css b/chrome/userChrome.css
new file mode 100644
index 0000000..b9385da
--- /dev/null
+++ b/chrome/userChrome.css
@@ -0,0 +1,34 @@
+ #threadTree {
+ background-color: #e7e7e7 !important;
+ }
+
+ #calendar-list,
+ #messagePane,
+ #folderPane,
+ #folderPaneBox,
+ #folderPane > scrollbox,
+ #folderTree,
+ #folderTree treechildren {
+ background-color: #e7e7e7 !important;
+ background-image: none !important;
+ }
+
+ #threadTree tr.selected,
+ #threadTree tr.selected:hover {
+ color: #ffffff !important;
+ background-color: #999999 !important;
+ }
+
+ #threadTree tr:hover {
+ color:#000000 !important;
+ background-color: #999999 !important;
+ }
+
+ image.toolbarbutton-icon[label="Archive"] {
+ fill: orange;
+ }
+
+ image.toolbarbutton-icon[label="Delete"] {
+ fill: #FF6347;
+ }
+
diff --git a/chrome/userContent.css b/chrome/userContent.css
new file mode 100644
index 0000000..86f8048
--- /dev/null
+++ b/chrome/userContent.css
@@ -0,0 +1,5 @@
+ body {
+ background-color: #e7e7e7 !important;
+ color: #000000 !important;
+ }
+