The user inquired about a command to copy the color of one part to another, and creating custom colors. To create new colors: If you go to the Style button on the home tab and in the dropdown menu click the work styles. In the menu that pops up click “Faces Styles” in the Style Type box and to create a custom color you hit the “New… “ button.
To copy the color you hit the “Organizer” button on the right. Select the Color from the Part box on the right then hit the Copy button in the center to copy the color to make it a selection for you.