bug#33398: 26.1, netbsd-8; Hi Lock Faces, Hi Green B, default setting suggestion

[Juri Linkov <juri@linkov.net>]

>> I see that the closest color for this is named "brown2".
>> It's not required to always use colors with names,
>> but in this case "brown2" is very close.  Another close
>> candidates are "red2" and "firebrick2".
>
> Red2 (#ee0000) might be invisible to red-color blindness.
> It could be too glaring still depending on taste.
>
> The name firebrick2 hints closer to a kind of red than brown2.

OK, firebrick2 is a good color for `Hi Red B'.

>> Then for hi-green we could use "green3".
>
> The 'light green' is easier on the eye, it seems to my eye
> not having exclusively one color component in the RGB is better.

'light green' is almost white, so it's difficult to read on
white background when 'light green' is used as foreground color
in `Hi Green B'. This is the reason why 'light green' is used as
background color in `Hi Green', i.e. 'light green' is better
for background, not foreground.

>> Regarding your idea of using rainbow colors, the problem
>> is that on TTY there are only these colors:
>> 
>> red, green, yellow, blue, magenta, cyan
>> 
>> hi-blue face uses cyan color, not blue, and
>> hi-pink face uses magenta color, not red.
>> 
>> Since hi-yellow uses yellow, and hi-green uses green already,
>> unfortunately there are no other colors available on TTY.
>
> That's a rabbit hole beyond scope. I am afraid.

The same way as hi-yellow is defined to use yellow, and hi-green
to use green, we can define hi-blue to use blue color, and
hi-pink to use red color.  This will free cyan and magenta
to use.