Abstract font colors

core/color/colors.css

@@ -0,0 +1,40 @@
+/* Font colors should be as abstract as possible.
+ * This allows us using any skins we like without modifying classes
+ * Use .firm class for unique color of the project (like orange in my example)
+ * Use .positive, .negative to style only relative information (like system messages or feedback, etc)
+ */
+.bare {
+  color: #bbb;
+}
+
+.pale {
+  color: #999;
+}
+
+.neutral {
+  color: #666;
+}
+
+.opaque {
+  color: #333;
+}
+
+.sharp {
+  color: #000;
+}
+
+.contrast {
+  color: #fff;
+}
+
+.firm {
+  color: #fc6c06;
+}
+
+.positive {
+  color: #73ab00;
+}
+
+.negative {
+  color: #c20000;
+}