I would like an option next to colour preview that limits the number of colours that're used by the programme when adding colour to the generated ASCII.
E.g. If you had a colour picture and chose 3 colours as the limit, it'd calculate the characters like normal, but then apply a filter similar to contrast or use another method which would decrease the number of colours and then use that to calculate the colours from.
Alternativly, use the colours from a different user-provided picture of the same ratio or a palate.
Why would this feature be useful?
Currently the colour options take up a relatively large amount of space when saved, because of how many tags are used, but reducing the number of colours before loading the image into the programme results in loss of quality of the ascii.