chat/message: Fix tests

chat/message/user.go

@@ -238,7 +238,6 @@ func init() {
 	DefaultUserConfig = UserConfig{
 		Bell:  true,
 		Quiet: false,
-		Theme: DefaultTheme,
 	}
 
 	// TODO: Seed random?

chat/message/user_test.go

@@ -39,6 +39,7 @@ func TestRenderTimestamp(t *testing.T) {
 
 	cfg := u.Config()
 	timefmt := "AA:BB"
+	cfg.Theme = DefaultTheme
 	cfg.Timeformat = &timefmt
 	u.SetConfig(cfg)