[Request]: Nonsquare Texture uniforms with larger resolution than 256x256

[droshux]

As far as I can tell you can only add square texture uniforms with a maximum resolution of 256x256.

I wanted to use this app to upgrade a static wallpaper with more live effects, however I found that I couldn't use my existing wallpaper as a texture without it being cropped down to a square and thus horribly distorted.