message: tweak text color threshold.
diff: @@ -215,7 +215,7 @@ class Path<Props extends PathProps = PathProps> extends Displayable<Props> {
  const fillLum = lum(pathFill, 0);
  // Determin text color based on the lum of path fill.
  // TODO use (1 - DARK_MODE_THRESHOLD)?
  - if (fillLum > 0.6) { // TODO Consider background lum?
  + if (fillLum > 0.5) { // TODO Consider background lum?
  return DARK_LABEL_COLOR;
  }
  else if (fillLum > 0.2) {
  