+2007-04-03
+ * added new pseudo game mode "PANEL" to define panel fonts and graphics
+ - panel fonts now use ".PANEL" suffix instead of ".PLAYING" suffix
+ - panel graphics now use ".PANEL" suffix instead of ".DOOR" suffix
+ (else graphics would have to use ".PLAYING", which would be confusing)
+
2007-04-02
* added attribute ".tile_size" for element style game panel controls