Even so I'm a little bit short of time, I could help with [1]. But just to change the colour theme, without seeing it in the real app is probably not the right way. Also I don't know if the colours i'll choose would fit universal needs. Wouldn't ist make sense to offer different themes. On the other hand that would mean more work for you - for not so important things. [2] I think, for that I'm useless, because I tend extremely to see as much as possible on maps. Which makes it usually quite uncomfortable for people not used to that.