OK, 4a is old news now :-) So taking inspiration from the 4a glyph Litmus Paper, and from the round camera island of 3a Pro, clearly for the 4a Pro the glyph should be a circular single ring spanning the full circumference of the camera island, so it doesn’t stand out to non-nerds as a glyph, and appeals to the mainstream and photographers as a very functional ring flash (guess you better maker sure it has a decent macro capability too).
BUT, the ring is not a single LED, but an LED strip capable of complex animations, similar to addressable LED strips in stage lighting and installation. A frosted LED ring with detailed and smooth LED animation. And complex control for photography also.