Re: Emacs Survey: Toolbars

[Yuri Khan]

On Sat, 26 Dec 2020 at 01:15, Stefan Monnier <monnier@iro.umontreal.ca> wrote:

> > Do you have suggestion for automatically computing "it's not too hard"
> > color mapping for "inverse video" "pure" text?
>
> Convert the color's YUV and invert the Y.

Possibly better: keep the hue and saturation and recalculate luminance
to preserve the relative contrast to background color.