Theme::getStartColorCodes

static function getStartColorCodes(): array
{
	$colors = self::getColorCodes();
	$startColors = [];
	foreach ($colors as $colorItem)
	{
		if (isset($colorItem['base']) && $colorItem['base'] === true)
		{
			$startColors[] = $colorItem['color'];
		}
	}
	return $startColors;
}