pub fn text_width(text: &str, size: f64) -> f64Expand description
Estimated width (px) of text set at font size size, in the house sans
(Hanken Grotesk, or the system UI font it falls back to). This is a
heuristic per-character average-width table, not real font metrics —
good enough for layout decisions (fit, overlap, auto-wrap), not for
pixel-perfect text extents.