It looks like a glossy toy or molded part: reflections catch on rounded edges, and the surface color blends smoothly.
`colorA` and `colorB` set the ends of the surface gradient. Raise `thickness` to extend the rounded edge inward; `roughness` shifts the finish from crisp gloss toward soft satin. More `reflectivity` strengthens environment reflections.
The effect generates its own surface, and simple colors help its outline read. Excessive reflection can make a small badge or icon hard to distinguish.
When to use
Use it for toy-like icons, product buttons, or bright dimensional badges. Avoid it when the design calls for a restrained matte finish or a non-reflective product surface.