davebax thanks for your detailed reply. I though that with windowblinds I would be able to change the Aero theme as easy as it is to change the windows theme if aero is not in use, through "change system colors". As I understand from your post I have to use a pre made skin by another developer, instead of making my own small changes. Also when I am in system colors menu as in the picture in the link http://s30.postimg.org/ciobz2pn5/ge_1920x1080.jpg next to the description, i.e. "System color :ActiveBorder" I don't see the existing color, even though at the help file each function had on the right the color used. Does it have to do something with the trial?
Gaspershooters sorry I know I messed with the pix although I am not a forum newbie, but it was mainly as I had copied the address of the "Thumnail for forums" postimage.org function, but as i couldn't find a preview of my message here, I wasn't sure if the postimage's thumb works here so I used stardock's image resize option and the images turned out bad, but I will paste now the thumb to see if its working
well not working so I am posting the direct link of the color that I want to change (the color highlighting the New Private Window option) http://s10.postimg.org/b2s95ovp5/Image_1920x1080.jpg
EDIT: thanks for replies unfortunately the system does not allow more posts from new members so I will edit my last post with the hope you see it.
Gaspershooters thanks for taking the time to explain but I do not understand why you keep insisting on firefox. I thought that the changes with windowblinds are universal, i.e. work for all open windows. So I downloaded a skin from the web that does what I want as shown in the picture (hopefully right this time). What I want (or wanted initially, when I opened the topic) is to make a copy of my theme and then customize some elements of my choice. So is possible to just customize some elements on the basic window aero theme via the "Change System Colors" option, or in order to do that I have to dive deep in the customizing and create my own skin from scratch thus better avoid it and use another developer's skin?
http://postimg.org/image/knmc1foh7/