@Framiga
Some things you should realise about the normal shell and KingCon both
In the following escape sequences, X is a number from 0-7 that reflect the eight colours set in your palette prefs.
*e[>Xm - sets the console background colour to X
*e[3Xm - sets the text colour to X
*e[4Xm - sets the text background colour to X
You can chain these, which is how you get for example the "*e[32;41m", which sets the text/text background colours at the same time.
So numbers 0-3 in these for a standard WB palette are grey, black, white and light blue repsectively.
In the prompt string, I coloured the "shell number / returncode" part with colour number 3, which is a blue colour on my set up.
Yours is very dark blue presumably because you set colour 3 as dark blue in your palette preferences.
Try a different number for X in
prompt "*n*e[>1m*e[3X;41m*e[1m%N/%R.*e[30;41m%S>*e[0m*e[32;41m "
...or change your palette prefs to make colour 3 the shade of blue you want (or both - find a spare colour in your 8 basic workbench colours, change it to whatever you want, and use that number for X)..
Hope this helps.