Dev - Also, on form submission, use GD to resize the image as a new thumbnail file
Dev - In the submission form, you can now upload a banner image
Fake HDR / Bloom Example
With it, you can fake a bloom effect, increase the contrast to fake HDR, or make up your own effects.
The example only shows the technique being used on a static image, but by drawing everything to a surface, you can get the same effects on everything in a game.
It works by drawing adding the image to the screen multiple times with layers of color in-between to adjust color.
Computers with older graphics cards may have trouble with repeatedly drawing large images, but most newer ones should have no problems.