This was  brought up in January in this article https://forums.wincustomize.com/374789

Xiandi's reply #11 works perfectly...

To get rid of the system icon - Go to the per pixel buttons section of SKS and choose System Icon. Go to the 'extra settings' tab and set the icons alpha to zero.....poof, its gone but you can still use it.

To get rid of the titlebar text - The same action can get rid of the titlebar text as well: Go to the Perpixel Frames section and choose Caption. Go to the 'extra settings' tab and set the Active Text Alpha and TextAlphaInactive to zero.

But I need to have SkinStudio? There is no possibility to go into windows soul?

I don't really wanna use stardock stuff.

But I've got another idea. Are there blank fonts? I mean fonts without letters or better with not displayable letters. So I just need to put that font and the text disappears...

Would that work or does anybody know a source for that, I couldn't find any...

Thanks

Yes, but Stardock products will allow you to do what you want, obviously they're worth using!