After some playing around with Photoshop I was able create a custom DEFAULT manila background using the wallpaper above. This is not a custom wallpaper (like chosen from wallpaper settings in TF3D) but a replacement of the OEM manila background files on your phone. This cab is fully uninstallable if you ever want to change back! Includes portrait and landscape background files. Tested on WM 6.5 Sense 2.1 Manila and should be fully compatible with stock Manila 2.1 on WM 6.1 as well.
I created this to fix the slow responsiveness of the home screen weather animations. [Weather animations, especially rain will have notable lag (windshield wiper movement/clearing the dirty water image) when using wallpapers other than the default]
If you like my work please say thanks!
Enjoy!