Propagate "quit" event, do not just terminate application. Resize: flag widgets to be resized, do resizes only once before draw. Draw: flag widgets to be redrawn, do not draw everything on any event.
Colors
======
backend.setcolor(name, description)
This will parse description, prepare attributes and save them under 'name'.
Description is in format <foreground> "on" <background> "," <attributes>.
For example:
"black on cyan"
"white on cyan" or "gray on cyan, standout" (equivalent)
"yellow on red, underline, blink"
backend.pushcolor(name)
backend.popcolor()
Default theme
-------------
menu-normal - black on cyan
menu-highlight - white on cyan
window-normal - gray on blue
window-highlight - white on blue