Runs in parallel, corresponding the number of CPU cores on the computer.
Each process handles a single image file.

Reads data from scraped screenshots. Supports profile, more info, and
more info with expanded kill screenshots. Only supports 1440x2560
screenshots. Breaks easily with shifted text, run with --debug to
validate that the bounding boxes are correct.

Add a mode to grab only power from the top 300 players. Run with --top
to use this mode, or --power for full power rankings. Flag names should
be changed.