Minecraft wiki entry for Development_versions, associated text: Added froglights, with 3 variants: Ochre, Pearlescent and Verdant.
Emit a light level of 15.
Dropped when frogs eat small magma cubes.
When eaten by Swamp frogs, drop Ochre Froglight.
When eaten by Tundra frogs, drop Verdant Froglight.
When eaten by Tropical frogs, drop Pearlescent Froglight.