Set more generous minimums. Flicker seems to have nothing to do with minimum size. I get it even for fairly large dimensions after scaling down from a much larger size. Similar to issues with zoom from about a month ago, before unc0rr fixed them.
Check if we need to download and prevent user from reaching the startgame menu because it needs images from the download
enable window resizing (tested only on linux) - fix
issue #103
this should fix the double free that happens when closing the sdl window on ios (untested)