Hopefully you will be able to implement themes in a future version, so that there can be a default 'boring' theme, and optional slightly wackier themes. On and please accept my vote for a usable windowed mode. As jolouis says, it is useful when you want to quickly switch to something else. Whenever I use a fullscreen app like Canola, I feel slightly claustrophobic as if I'm stuck in that app, even though I know I can use the hardware switcher button.