[IDB] Feature Request: 1 alpha pixel highlighting

[ZeWaka]

Idea:

Highlight 1 alpha pixels on sprites so that we can tell if holes/outlines are done. See image for a (fake) example.

Possible implementation:

for color in dmi.pallete:
  if color.alpha == 1:
    color.alpha = 255
    color = "#ff00ff" // magenta

Downsides / Alternatives:

Some app users may not want this because they dum. Perhaps make it opt-in using a config file, similar to SpacemanDMM (maybe in .github?):

IconDiffBot.toml:
[alpha_highlight]
enabled = true
color = "#ff00ff"

Example Images (there's not actually a 1 alpha outline but you get the point):