As you get older, you gradually get cataracts -which makes your lenses go yellow. This has the effect of reducing the contrast you experience with blue. Blue against back is very problematic, while blue is generally not great anyway.
Eventually, you need an operation to replace your lenses replaced with plastic ones, after which you can see ultraviolet. I am at the stage where dark blue on black is nearly invisible. Probably most males over 60 will experience this unless already colourblind. If you are designing UIs you need to know this. And at least some of us have been Unix users since the 1970's when X did not exist, and are likely to use text mode a lot. On Tue, 7 Jul 2020 at 18:37, Stuart Henderson <s...@spacehopper.org> wrote: > On 2020/07/07 15:16, Frederic Cambus wrote: > > Hi tech@, > > > > The recent spike of interest around framebuffer consoles has prompted > > me to revisit a proposal I sent back in early 2017 [1]. > > > > Aesthetics considerations aside, kettenis@ raised the concern that > colors > > from the original rasops palette carefully matched what OpenFirmware > > uses for the console on sparc64. > > ..and they're a good choice on sparc64 console with the pale background > that the palette is normally used with. > > I agree that the blue we have now is a bit too dark against a black > background. > >
