During testing on android (and sending icons as png as per r176) I noticed that some window icons, sent as "icon" as part of the window metadata can be up to 256x256 in size. Most of the time these are only used as a small icon in the window's title bar and in the task manager. Also, as far as I know there are no constraints on the size which will be accepted by the window manager. Therefore, to try to minimize the use of bandwidth we should scale those down to a more reasonable size before sending, maybe 48x48?
done in r184 (set to 64x64 max for now - keeping aspect ratio)
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/25