Upaint Textures! 256x256?

I used the basic textures of Upaint (the ones already on there), and i made my own colors with that palette on there. I also imported a texture that i got off the internet (it was a background that i thought looked good)

I get an error while trying to export to unreal.
It says my file cant be imported because its dimensions are not powers of 2(200x200).

How do i fix this?

Make your pic 512x512, 512x256, 256x256, 128 x 256 or 128 x128 pixels.
Powers of 2 are 2, 4,8,16,32,64,128,256,512,1024,2048 etc
Your pic must be one of these numbers in width and height.
If you were doing this and still getting that error then lots of luck.

[legacy-Verizian]

you really only have 2 choices for textures

Adobe photoshop which is only for rich folks or jammy students like me who get discounts

Or jasc paintshop pro which is relatively cheap at around £90 and has a 30 day free trial. It's not quite as powerful but it earns a solid second place.