Re: [Gimp-user] Converting from indexed to RGB modes; brush color off

On 12/23/19 7:46 AM, Øyvind Kolås wrote:
On Sun, Dec 22, 2019 at 11:42 PM Gary Aitken<gimp dreamchaser org>
I don't know if this is intentional or not; I would have thought
that if the original color index map is not full, using a new color
would add it to the map, but apparently not.
What you are suggesting; to add the directly chosen color of the paintbrush/pencil tool, if there is empty slots in the palette would not conflict with this and be a nice addition - filing an issue against GIMP in to keep it from being forgotten might be a good idea. It would have to be only the directly selected foreground color though and not its antialiased results with various background pixels which would be ohter colors implicity attempted to be inserted. Since the more complete port to babl/GEGL with 2.10
GIMP is no longer special casing INDEXED/GRAYSCALE mode from RGB.
This meant as new features we gained anti-aliasing for the paintbrush
in indexed mode, ability to blur and do other filters; as well as anti-aliased results when merging down layers/text-layers - this
would quickly exhaust the free slots in the palette if all attempted
to be used colors were added (checking if the current foreground
color is part of the palette before starting a new stroke is also a
more feasible code change than always dynamically growin the


Done, issue #4400

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