Re: Emacs Survey: Toolbars

[Tomas Hlavaty]

On Sat 26 Dec 2020 at 01:24, Yuri Khan <yuri.v.khan@gmail.com> wrote:
> 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.

Is there a name for that or more detailed description I could follow?