HR zone colors on fr55

What colors (Graphics.COLOR_* or hex) does the fr55 use for the HR zones?

I found this marketing image from Garmin which seems to be fake, 'cause according to all the docs it doesn't have gray:

  • The fr45. fr55 and swim2 only have 8 colors.

    if you use COLOR_LT_GRAY it shows in the sim as white. COLOR_DK_GRAY as black (colors get maped down to 8)

    On the instinct2/2s/crossover and the edge 130, there are only 2 colors so even a bit more interesting!

    What some do on things like the I2 for "gray" is overlap bitmaps, to "look" gray.

    Instead of having the pixels

    bbbbbbbbb

    or

    wwwwwww

    what's on the display is

    bwbwbwbw

    and it looks gray

  • That's a good idea, but does the HR zone really look like on the picture (if yes, then now I know how to make gray) or does the real fr55 use different colors? Or it doesn't even have such widget or datafield that displays the zones with colors?