micker, as a.l.e. has said above, a lot of people just create colours as they need them or according to a palette that has been defined for the publication they are working on. That is the normal way of working for Desktop Publishing; too many colours can spoil a good layout.However, I think I can understand where you're coming from. A lot of beginners will not feel comfortable creating their own colours and would like to be able to simply choose from a preset palette with a decent range of defaults, like you do in Inkscape, LibreOffice etc. And some people might not even realise that colours can be changed through the Colour Manager - it's a bit "hidden" in the Edit menu - and think that the only colours that are available are the ones listed in the Colours tab of the Properties Palette.It might be good if Scribus allowed users to change colours via the PP Colours tab. At the very least a button could be given to get to the Colours Manager as an alternative to the Edit menu route. Or a context sensitive menu from the Colours tab where users can add/change/remove individual colours.In the meantime, have you seen this article: https://wiki.scribus.net/canvas/How_to_create_your_own_colours ? It tells you how to create and manage colours, including an easy way of adding colours from the various palettes included with Scribus ("Creating a new colour from an existing palette"). It might be worth some time looking through it as it could save you time in the future.You can also use https://create.vista.com/colors/palettes/cream-color-palette/ for yourself, as it will help you competently and quickly select color palettes for your projects, as this will make your project coherent and gramonic. There are just a bunch of all possible color combinations for every taste. Using color schemes always creates a coherent and pleasing look.