Run The Run Dialog StyleHack and Import Images
Then Do The 4 Things Below...

4 Things You Have To Change By Hand

Fonts, Colors & System Metrics > Fonts & System Metrics>

BtnFace:Color
1) (Pick Color )

Explorer & Shell > Shell > TaskDialog > PrimaryPanel >
2) ( Remove Property FillColor:Color ) ( Remember To Remove This Or It Won't Look Right )

Explorer & Shell > Shell > TaskDialog > FootNotePane

FillColor:Color
3 ( Pick Color )

Explorer & Shell > Shell > TaskDialog > ContentPane

FillColor:Color
4 ( Pick Color )


Tip:

If The Font Color Is In Conflict For Easy Readability
Go To...
Fonts, Colors & System Metrics > Fonts & System Metrics
Change BtnText:Color Or Change WindowText:Color

By PC2012

Note:
Someone Else Had The Idea
Others Improved upon it
I added all the elements so there is less work.

Win7 Style Builder Does not remove properties
so ... that is one thing that has to be done by hand.

And Picking The Colors You Want ...
You have to do that yourself



source:
HTML Code:
https://pc2012.deviantart.com/art/Run-Dialog-StyleHack-253638685?q=in%3Acustomization%2Fskins%2Fwindows7%2Fmisc%20sort%3Atime&qo=72