Here is a small and free tool named Aero Adjuster, which adds Windows 8 Aero Color Functionality to Windows 7 like when you change your wallpaper it will change the Aero color to match the wallpaper’s color temperature and hue.
This nice Windows 8 Aero Color Functionality adding app, named as Aero Adjuster is developed by SamusAranFreak.
License : Not Mentioned, but obviously one must ask the developer if want to do futher modification.
Details about Aero Adjuster, the Windows 8 Aero Color Functionality adding app for Windows 7:
The developer says,
This is a little app that adds a bit of Windows 8 functionality to Windows 7. (Again, no Vista support)
It sits in the tray, automatically detects when you change your wallpaper/when it is changed as part of Win 7’s desktop slideshow, and changes the Aero color to fit that wallpaper.
If you don’t like it, you can always restore the color to the point before the tool was opened.
Preview Aero Adjuster, the Windows 8 Aero Color Functionality adding app for Windows 7
Download Aero Adjuster, this Windows 8 Aero Color Functionality adding app for Windows 7
It is a ZIP download, the file is very light, only 229 KB in size.