Simply that, allow the MatCap in Toon Standard to be emissive in some way, similarly to how Poiyomi does.

This would allow the sun on my Niko avatar (from OneShot) to be emissive on Mobile, as it uses a MatCap on an inverted sphere to simulate the "rings" of light and the shine inside the bulb without clipping into the filament. It's the one thing now remaining to get visual parity across platforms.

Niko: avtr_bd3da860-8694-45a8-9b77-a9af41f51047