Hi,

I came across a StackOverflow question that apparently turned up a bug in Tk itself with regards to Spinboxes on Windows Aero themes.  The question is here:
http://stackoverflow.com/q/30783603/

And I did a deep-dive of the issue here as the accepted answer:
http://stackoverflow.com/a/36393680/

This led to someone from Tk noticing, and they patched the bug in Tk upstream in this commit:
http://core.tcl.tk/tk/info/f91b7065bf1bf655

I do not know if that commit is in a current Tk release (doubtful).  Could you guys look at picking it up for the next Python 2.7/3.x release?  It only affects Windows platforms using Aero.  Classic mode spinboxes or other Tk themes (e.g., clam) are unaffected.

It'd also be awesome if Tk-8.6 could go into the next Python 2.7 release under Windows.  That has PNG support for Tk's PhotoImage class, which would make working with icons and transparency a *lot* easier.