Index: trunk/tests/gui_test/test.style.lua
===================================================================
--- trunk/tests/gui_test/test.style.lua	(revision 328)
+++ trunk/tests/gui_test/test.style.lua	(revision 329)
@@ -9,4 +9,9 @@
 		--border_color = { 0.2, 0.2, 0.4, 1.0 },
 		skin = "button.png",
+
+		[":hover"] = {
+			text_color = { 1.0, 1.0, 1.0, 1.0 },
+		}
+
 	}
 }