Vent the stool legs and keep the connecting screws for the last step.
Spray the inside of the tray with paint color and wait half an hour to dry.
Spray over the fabric with darker spray paint tray and wait two to dry for half an hour.
After drying, remove the piece of lace for the finish, pour a water based sealer on entire tray.
Attach the legs of the stool to the bottom of the tray. If wood tray too thin, you can attach the legs with epoxy glue or metal adhesive.