After reading this thread, I thought it would be somewhat helpful for users to preview their flames while playing, instead of while watching a replay.

Essentially, all it does is allow you to play with custom flames that are invisible to other uses, much like when customizing joints in the "item.dat" file.

Instructions are provided on the web-page.

Source: http://pastebin.com/qELpGimP (The actual PHP is a total of seven lines)

http://box.butterscot.ch/flamepreview/