We tried both dithering methods, the vertical lines and the regular cross-hatch pattern but the cross-hatch one caused more aliasing issues so we opted not to use it. Anyone can easily change the window patterns though, and in the pack I was going to make I will include both types of patterns and a bunch of others to choose from.
I think it would be great to have some extra help with the fonts. Currently the screen font also has several special characters which are tiny black&white images that I use in the ToolsDaemon menu to give the appearance of an icon before each entry, similar to the way it looks in more modern OSs. The icon font is a ColorFont with a black shadow, needing no extra patches.