The cabinet colours are normally changed either globally or individually.
Globally: right click on a blank area of the drawing grid, choose Global Attributes, Textures and try changing the door colours.
Individually: Right click on a cabinet, attributes, variables and change Door texture.
As for Cutting Lists, the Report Manager Cut/Door List lists cabinet components and dimensions but the list is not reliable and the cabinet construction method probably does not match yours anyway. 2020 Design is really meant as a sales tool and not a manufacturing program.