Setup: Unzip the zip files in third_party/ so that you have the directories third_party/Imaging-1.1.7/ and third_party/zlib/. Usage: python hitbox_expander.py This tool expands the hitbox of the given image by 1 pixel. Works by changing some of the fully-transparent pixels to alpha=1 black pixels. Naked human eye usually cannot notice the difference. No space carps or corgis have been used or injured in the production of this tool.