Hi
env debian 9.9 framebuffer tty
prb running a test pgm,
the yellow color displays red on tty and lxterminal
displays correctly with urxvt
to further debugging i installed colortest package and
colortest-16 give the same results ...
looking at .fbtermrc it states
____________________________________________________
# default color of foreground/background text
# available colors: 0 = black, 1 = red, 2 = green, 3 = brown, 4 = blue,
# = magenta, 6 = cyan, 7 = white
_______________________________________________________________

YELLOW IS NOT AVAILABLE !!!
How is possible ,it uses brown and not yellow !!

Question ...
i find the problem ?
any circunvention .. or bypass ?
any help will be appreciated
Maurizio

Well, bold brown may be displayed as yellow on the console. Try

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Hi
i did not explain my requirements ...
i do not need to change the default display color ...
my tty and lxterminal console displays withe on black and it 'is fine
i write a pgm that use console color to display data ...
if inside the pgm i specify "yellow" the text is displayed "brown" ..all the other colors works ..if i specify "bight yellow" it correctly displays bight yellow ...
i create a test pgm to test all 8 color + highlight (16 colors)
if i run the same program inside urxvt console it correctly displays all colors ...
the problem is only on "tty" and "lxterminal"
Maurizio

Yes, it's historical. CGA displays used to have special hardware that modified dark yellow -- which had an unpleasant sort of mustardy green hue -- into a more pleasant brown colour. If you're really interested, take a look at the wikipedia page on CGA some time.

Of course the advent of full 24-bit RGB on later displays changed the game, but the first 16 colours on the framebuffer console continue to use these old CGA colours by default¹.

--
¹ I actually like them, and configure my xterms to match.

Hi GazL
Thanks for the answer
Maurizio