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

[Gary Aitken <gimp dreamchaser org>]

On 12/23/19 7:46 AM, Øyvind Kolås wrote:
> On Sun, Dec 22, 2019 at 11:42 PM Gary Aitken<gimp dreamchaser org>
> wrote:
> > 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 gitlab.gnome.org 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
> palette).
>
> /pippin

Done, issue #4400