Some of what you mentioned is already present there. Some other things are new. But they're both terrifying...
Extra details: the rewrite into gifencoder happened in 2007, so gifmerge must be older than that (maybe 4.x times). The original license forbids modifying gifmerge without author's approval - since this file doesn't mention it at all, I doubt dmimage is legal.
Welcome to PHP! Truly the language which most directly represents the soul of the web - a stateless static documentation presentation system which we shoehorn application functionality into regardless of the pain!
Some of what you mentioned is already present there. Some other things are new. But they're both terrifying...
Extra details: the rewrite into gifencoder happened in 2007, so gifmerge must be older than that (maybe 4.x times). The original license forbids modifying gifmerge without author's approval - since this file doesn't mention it at all, I doubt dmimage is legal.