Commission for a fellow brony. I wasn't able to find it so made it myself.
Canvas is bigger than the heart itself but there are white beams with low opacity, coming from the heart. They are visible on dark backgrounds.
It's relatively huge, I saved it in the same resolution as the PNG file because all the glow effects I used don't scale if you resize the whole thing in the Photoshop. You'd have to manually adjust every effect after a res change. At lest that's how I understand it
MLP:FiM © Lauren Faust and Hasbro