How do I change font color inside e.g. properties box? (img attached)

Goto C:\Windows\Resources\Themes and maximize the window and post a screenshot, also open up the Zune Quickplay folder and post a screenshot of it to. Here are two examples of what I would like you to take screenshots of.
Jerry

Here are the screenshots:

Everything looks fine from the 2 screenshots.
Zip up a copy of the Zune Quickplay.msstyles I have highlighted in red and posted here so I can look at it.
Jerry

The Zune Quickplay.msstyles looks okay.
Let's try something here download this theme Browsing Windows 7 Utilities on deviantART



put the 2, 1 theme folder and 1 .theme file in C:\Windows\Resources\Themes do not use that tool/app you have that you used to install the last theme do this manually,


then go to Personalization and start that theme and post a screenshot of what it looks like.
Jerry

Ok, here are the screenshots:
*btw, pretty neat theme

edit: I added one more capture of "run". Does it look same like yours?

That's good it looks like it installed correctly, my run box looks the same as yours with this theme.
That means something's going wrong when you install the other theme.
Do Option 2 of this tutorial SFC /SCANNOW Command - System File Checker it will not harm any data or programs you have installed it will try to find and repair corrupt system files, If you have changed any of the system files like explorerframe.dll or use the program to change your start button they will revert back to the default also the files that were patched with Universal Theme Patcher will also revert back to the default you will need to re-patch after running sfc /scannow.
Then manually put the Zune Quickplay theme folder and the Zune Quickplay.theme file in C:\Windows\Resources\Themes (be sure to delete the old ones first, remember to switch to the default Aero theme and logoff and logon first).
Jerry