Changing the colour of documents with those colours not in the Label

I want to change the colour of my documents, but there are only the few in labels. Is there any possibility of having a wider selection like bright yellow? Also, can one 'bold' a colour? Thanks.

In Preferences / Favorites and Recent / Labels, there's a Bold checkbox.

However, I don't know if DOpus Light has that feature.

Add new label here :

Thank you for your suggestions. Do you have any ideas on how to import the extra colours?

Import from where?

The ones shown in people's screenshots are ones they have made themselves. You can make your own by clicking the button above the list of labels.

There's a whole bunch of colors available.