Hello everyone, this is my first post. I have never created a visual style and my first goal is to change the background of Explorer and the work area of applications like Notepad, Word, etc... from white to a less blinding color (such as a very light orange). My questions are:

1) There is a good freeware utility to make these changes?

2) If not, what is the best software to edit my aero msstyles file?

Thank you in advance!

P.S.
My O.S. is Windows 8.1 and I am able to install custom themes like Toxic by Mr. GRiM and other found on this forum.