Apply color schemes to floor plan views and section views based on a specific value or range of values. You can apply a different color scheme to each view.
Room & Area panel drop-down
(Color Schemes)

Use color schemes to color and apply fill patterns to:
To use color schemes, you must have rooms or areas defined in the project.
To use color schemes for MEP elements, you must also have spaces, zones, pipes, or ducts defined in the project.