Out of date documentation for Color to Alpha
Reference: https://docs.gimp.org/2.10/en/gimp-filter-color-to-alpha.html
The documentation for section 8.56.3, Options, and the accompanying Figure 16.245. “Color to Alfa” command options, are nowhere near close to the options and dialog box in GIMP ver. 2.10.x, and as such, are completely useless. This section needs to be updated.