Thank you for the 5 stars review. It helps and inspires me to develop it.
For the moment it does not support colored labels, but I planned to add this in future. Or it can be added via hooks, but you have to be familiar with development a bit.
Thanks to you, for creating this wonderful plugin, maybe the colors option would be useful for the pro version, keep in mind that the Variation Swatches for WooCommerce plugin is the most used to add colors, maybe you could make it compatible.