🚀 go-pugleaf

>There were, are and remain only 33 colors in the tools > color palette, none of which are the ones I defined.
>

FM only has 15 pre-defined colours: Cyan, Magenta, Yellow, Black, Red,
Green, Blue 

and new for FM8 are: Dark Grey, Pale Green, Forest Green, Royal Blue,
Mauve, Light Salmon, Olive and Salmon.

Anything else is user supplied.

When you try to select the colour from the Tools Palete "Set Color"
button, is there by any chance a little inverted triangle at the right
side of the list at the bottom? If so, that means that you've used up
the available slots in the GUI display and FM can't display any more
colours through this interface. However, the Graphics > Object
Properties display should let you see all of the colours in the drop
down list there.

If some of those 33 colours are ones that you don't want nor need, I'd
suggest deleting them from the catalog to make more room for the ones
that you want.