Darkness is Magic (Patreon)

Just the cutest, pettiest little pony by Jékksyn Orilyn Ícaro to spruce up your devices! There is a vertical version (for phones and some tablets) and a horizontal  version (for computers and some tablets). Both versions are quite large  and should be workable for you. You just need to use the "move and  scale" feature on the device of your choice to size them to fit.