I suppose I'm done over-engineering my screenshot script for tonight. In addition to naming the screenshot based on the window name as reported by `xdotool getwindowname` (which one might assume is the same as, but for some reason differs from and in my opinion is better than, what `scrot` natively supports by using $W in the output filename), the screenshot script now calls my new image trimmer script which (conditionally) uses `mogrify -bordercolor black -trim` to trim the black bars away. So now I can just take a screenshot and get this, with no manual cropping. The `mogrify` command does take about half a second to run, but I don't mind as long as it's not hitting the CPU hard enough to make games stutter every time I take a screenshot or something. (Maybe I'll add a call to `cpulimit` if it does. Post-processing of screenshots can be slow as fuck for all I care.)
Also: damn it, I forgot that Battle Out Of Hell also has a Nightmare-only level.