A panel (40) includes a thermoset material (20), and an image (42) comprising sublimation ink. The sublimation ink is absorbed in the thermoset material. The rigid component may be a rigid structure formed by the thermoset material. The panel may be for a bath or shower enclosure. The panel (40) is formed by inserting uncured thermosetting material (20) between upper and lower tools (12, 14) and applying heat and pressure to shape and cure the material. A carrier (30) comprising a transfer image (32) is thereafter inserted between the thermoset material and the upper tool and heated and pressed to sublimate the ink of the image into the themoset material.