Function parse

frontend/tests/e2e/sql-editor/sql-editor-admin-mode.spec.ts:175–193

(s: string)

      // oklab L is 0–1 — both map linearly to 0–255, plenty for the harmony
      // assertion below.
      const parse = (s: string) => {
        const rgb = s.match(/rgba?\(([^)]+)\)/);
        if (rgb) {
          const parts = rgb[1].split(",").map((p) => parseFloat(p.trim()));
          return { r: parts[0], g: parts[1], b: parts[2], a: parts[3] ?? 1 };
        }
        const oklab = s.match(/^oklab\(\s*([\d.\-]+)/);
        if (oklab) {
          const gray = Math.round(parseFloat(oklab[1]) * 255);
          return { r: gray, g: gray, b: gray, a: 1 };
        }
        const lab = s.match(/^lab\(\s*([\d.\-]+)\s+([\d.\-]+)\s+([\d.\-]+)/);
        if (lab) {
          const L = parseFloat(lab[1]);
          const gray = Math.round((L / 100) * 255);
          return { r: gray, g: gray, b: gray, a: 1 };
        }
        return null;
      };
      const shellRgb = parse(shellBg);
      const blockRgb = parse(blockBg);