Function luminance

packages/backend/src/common/retrieveUI/commonUI.ts:14–20

(color: RGB)

};

function luminance(color: RGB) {
  const a = [color.r * 255, color.g * 255, color.b * 255].map((v) => {
    v /= 255;
    return v <= 0.03928 ? v / 12.92 : ((v + 0.055) / 1.055) ** 2.4;
  });
  return a[0] * 0.2126 + a[1] * 0.7152 + a[2] * 0.0722;
}

export const deepFlatten = (arr: Array<SceneNode>): Array<SceneNode> => {
  let result: Array<SceneNode> = [];