[Bug 51553] Purple bitmap should be transparent in scrollbar theming

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51553

--- Comment #4 from リェンーゆく  ---
(In reply to Zhiyi Zhang from comment #1)
> Please provide the theme file "Win8RTM". The purple color should be
> specified in the theme part definition with the TransparentColor property. I
> suspect it's missing from the theme file.

I've attached it along with the screenshot in Windows XP (Forgot to attach that
:P)