VIEWPORT_Y
Sorts symbols by their y-position relative to the viewport if {@link ICON_ALLOW_OVERLAP} or {@link TEXT_ALLOW_OVERLAP} is set to {@link TRUE} or {@link ICON_IGNORE_PLACEMENT} or {@link TEXT_IGNORE_PLACEMENT} is {@link FALSE}.
Sorts symbols by their y-position relative to the viewport if {@link ICON_ALLOW_OVERLAP} or {@link TEXT_ALLOW_OVERLAP} is set to {@link TRUE} or {@link ICON_IGNORE_PLACEMENT} or {@link TEXT_IGNORE_PLACEMENT} is {@link FALSE}.