ArcaneColorOps extension

Opacity and blend helpers for ANY CSS color string.

Colors cross the ArcaneStyleData boundary as raw strings — a hex value (#4CAF50), a theme variable (var(--primary)), an ArcaneColor.*.css token, or a runtime accent. The historic ${color}30 hex-alpha suffix hack silently corrupts any non-hex color (var(--primary)30 is invalid CSS); these emit color-mix(), which works for every color form.

on

Methods

on(String base, double amount) → String

Available on String, provided by the ArcaneColorOps extension

Blends amount of this color over base (alpha stays 1).
opacity(double amount) → String

Available on String, provided by the ArcaneColorOps extension

Fades this color toward transparent. amount is clamped to 0.0..1.0.