Re: [Gimp-user] controlling background color

[Alexandre Prokoudine <alexandre prokoudine gmail com>]

Spencer,

I tried replicating the issue you ran into and didn't manage to. If
you can share your PNG file, that might help (if there's a bug in
GIMP).

Alex

On Fri, Dec 21, 2018 at 7:58 PM Spencer Graves
<spencer graves effectivedefense org> wrote:
>        I solved this problem following a post "Re: frustrated" by
> Alexandre Prokoudine via gimp-user-list <gimp-user-list gnome org>.
> Prokoudine suggested starting File > New.  I did that, specifying width
> and height to match the image for which I wanted white (not transparent)
> background.  I also clicked "Advanced Options" > "Fill with" White, then
> "OK".  Then I copied the image for which I needed a white background and
> pasted it onto the new file.  File > "Export as" png confirmed that I
> had fixed the problem.
>
>
>        Someone else could probably provide an easier, more direct way to
> do this, but this worked.
>
>
>        Thanks,
>        Spencer Graves
>
>
> On 2018-12-21 03:20, Spencer Graves wrote:
> > How can I control background color?
> >
> >
> >       I've done File > Open > [a png file with a transparent background].
> >
> >
> >       This gives me an image with a transparent background.  I need a
> > white background.  I try Layer > "New Layer" > White, and the layer is
> > NOT white but a teal green that matches one of the colors in the image
> > I opened.  Layer > "New Layer" > "Background color" gives me the same
> > teal green, which the computer seems to think is white.  Layer > "New
> > Layer" > "Foreground color" gives me black, which matches another of
> > the colors in the image.  I've tried using the "Bucket Fill" tool with
> > the new layer, so far without success.
> >
> >
> >       The image I'm trying to modify is the logo for the Citizens'
> > Climate Lobby, "CCL-Logo-H2.png", which I found by downloading the
> > entire web page from their web site (attached, in case your email
> > system will support this).  I'm using it in a place with a black
> > background, and all the lettering disappears.  See
> > "www.kkfi.org/program-episodes/citizens-climate-lobby-carbon-fee-dividend".
> >
> >
> >       I've tried this with both GIMP 2.10.8 and 2.8.22 under macOS
> > 10.14.2.
> >
> >
> >       The capability surely exists.  Sadly, my web search efforts and
> > experimentation have so far failed to find how to fix this.
> >
> >
> >       Suggestions?
> >       Thanks,
> >       Spencer Graves
> >
> >
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>
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