set the thickness of the pen with true color colors

[Giovannino60]

how do I set the thickness of the pen if the colors that have been used do not have the numeration of a complete number, but they used those of true color.
i.e. when I go to the table editor print styles, I don't see these colors so I can't right of the editor make a choice?

Thank you.Thank you.

 

[prismacad]

with print styles based on color (ctb) you can not, you should use those according to name (stb), but it is a speech too long.
In any case, I recommend that you assign (or assign) the color to the objects by layer and not with object properties, since then the management during the modification of the project becomes very problematic.