make symbolic tab icons optional, issue #2

ui/symbolic-tab-icons.css

@@ -0,0 +1,6 @@
+@namespace xul url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
+
+/* Make tab icons look kinda like symbolic icons */
+tab .tab-icon-image {
+	filter: var(--gnome-tabbar-tab-icon-filter);
+}

ui/theme.css

@@ -336,11 +336,6 @@ tab[selected] {
 	color: var(--gnome-tabbar-tab-active-color) !important;
 }
 
-/* Make tab icons look kinda like symbolic icons */
-tab .tab-icon-image {
-	filter: var(--gnome-tabbar-tab-icon-filter);
-}
-
 /* Remove tab icons */
 /* tab:not([pinned=true]) .tab-icon-image {
 	display: none;

userChrome.css

@@ -5,3 +5,6 @@
 @import "ui/theme-dark.css"; /**/
 /* Light theme */
 /*@import "ui/theme-light.css"; /**/
+
+/* Symbolic tab icons */
+/*@import "ui/symbolic-tab-icons.css"; /**/