Hi,
in OpenSCAD it is possible to set the colour of an object by a colour name .
Example: color ("Black")
I see that a "colour by rgba node" is much more flexible than a "colour by name node, but not everybody needs this flexibility.
Can be realized by a combo box in the colour node, where you can choose between colour names or rgba.
Think about it.
Kpacnaja_Shapotshka