As a test project to get to grips with fusion 360 I developed this two colour print to slide onto a mixer tap arm to show which way to turn for hot/cold.

You will likely need to print with a brim  and trim afterwards.

Adjust scale to fit your taps.

Had lots of attempts to get the model orientated correctly when imported into Prusaslicer (ay yes to multiple parts of one model)

Enable 2 extruders and set different colour filaments for each.

Add this code in Printer Settings, Custom G-Code:
; Change Temperature to the next required one 
M104 S[temperature[next_extruder]]
;next  filament_colour= [filament_colour[next_extruder]] Extruder #[next_extruder]

M0 change to [next_extruder] {(filament_colour[next_extruder]=="#FF0000"?"red"
:(filament_colour[next_extruder]=="#00FF00"?"green"
:(filament_colour[next_extruder]=="#0000FF"?"blue"
:(filament_colour[next_extruder]=="#FFFF00"?"yellow"
:(filament_colour[next_extruder]=="#000000"?"black"
:(filament_colour[next_extruder]=="#FFFFFF"?"white"
:(filament_colour[next_extruder]=="#00FFFF"?"cyan"
:(filament_colour[next_extruder]=="#FF00FF"?"magenta"
:(filament_colour[next_extruder]=="#C0C0C0"?"silver"
:filament_colour[next_extruder]
)))))))))}
M600 Q B3
I use the M0 command as M1176 gets overwritten by the tool change text and you don't get to see which colour to change to next.  With M0 you have to accept to say you have read it.
As long a filament colours are set as pure colour then the text will display the colour to change to.

Oh and for the kitchen tap simply print in one colour.

This seems to be the only way to share the Fusion 360 file https://a360.co/3Uq9C8q