Comment 15 for bug 1103742

I've looked more closely at the code for this and it is definitely not a matter of uncommenting the squircle textures and waiting on new png's. As a matter of fact, the squircle textures don't seem to be needed any more.

Instead, I made a test branch and fiddled around with this and I think we need to add some logic in IconRender::RenderIcon to handle adding a glow in the Edge Illumination cases. I'll continue working on this and then pass this by design and Marco.