You can do that in Windows 10. It can also change automatically based on your current wallpaper.
Similarly to installing Nova Launcher, perhaps the author need to use GNU/Linux or Windows instead of a Mac.
You can set an Accent color and either a light or dark background - that’s it. You can’t specify each component color or named system color - such as separately specifying the colors of the scrollbar’ track and thumb - or icon text - or button shadows - and so on.
The old “Desktop Themes” feature for Windows 95 Plus! and Windows 98 let the user radically change the appearance of Windows - for better or for worse - when was the last time you saw a custom desktop icon pack or purple 3D face color?
But yes - all of this assumes the user is aesthetically capable - but neither was Microsoft: Google Image Search for “windows hot dog stand”. Be careful, you might get a migraine.
I really, really miss the Windows 95 color picker. Sure, you could put grey text on a grey background, but you could also not do that. Microsoft has taken away the option one way or another.
https://docs.microsoft.com/en-us/windows/uwp/design/style/co...
I wish there was an override, because if I want pure white #FFFFFF as my accent color, that's my problem. I don't want to settle on a light grey.
I assume you’re referring to UxStyle etc as used since Windows XP? That doesn’t involve loading any executable code (unless there’s an RCE vulnerability in the theme resource loader, I suppose) - patching the signature checks in UxTheme.dll isn’t that big a deal, imo.
This might even be the main reason that the operating system as-is only allowed themes signed by Microsoft.