Function shape_scale 

pub const fn shape_scale() -> ShapeScale

The Material 3 shape scale: 10 corner-radius tokens (post-Expressive scale). Source: https://m3.material.io/styles/shape/corner-radius-scale (verified 2026-07-17; the pre-Expressive scale had 7 tokens, not 10). Radii are dp, treated 1:1 as logical px.