Add mica alt effect and some small tweaks

[littlewhitecloud]

@marticliment I think MicaMode is as same as MICATHEME, so we just need MICATHEME Added MICATYPE and add mica alt effect Some small tweaks Use black formatted the file

BTW, the tkinter example is too laggy, I have a way to apply mica effect without transparentcolor, but I don't figure out why win32mica cannot work well without transparentcolor

[marticliment]

I have rebased the code to make it clearer