Image from 'Brilliance', the bitmap graphics editor published by Digital Creations in 1993.
Although marketed as a single package, Brilliance in reality consisted of two separate (but near identical-looking) applications. One was a register-based package also named 'Brilliance'. The other was a true color package called 'TrueBrilliance'.
TrueBrilliance's HAM/true color performance which was significantly faster than that of Deluxe Paint IV. However, despite being faster and easier to use than Deluxe Paint, Brilliance never achieved the same level of popularity.
TrueBrilliance was notable for its ability to edit true 15 and 24-bit color images, even on older Amigas which could only display HAM-6 (pseudo-12-bit color) graphics. In such cases, the image was rendered as a HAM display, but all modifications were performed on the underlying true color image buffer. Even when the final image was intended for HAM display, this had the advantage that successive operations did not accumulate HAM artifacts on top of each other. Loss of quality could be restricted to a single HAM conversion at the end of the process.