In the version just uploaded (0.3.1), you can choose to use your configured colors as the background for the texts on the tiles. It’s in the first group of options.
In a future release I will add different hover effects to the tiles, but you are of course welcome to create your own in your theme!
Hi Ten Uy, I made mistake updating the plugin in the WP repo, it should be in there now. But when I go to your website, the different colors do show up, with full opacity. If it doesn’t work for you, it’s probably because you’re still loading the old .js file. Try reloading with refreshing your cache (ctrl + f5 on win and linux), or otherwise reloading the script at its url
( http://lilakalabasa.com/wp-content/plugins/WP-Tiles-master/_inc/js/wp-tiles.js?ver=0.3.1 )
It looks good on your website with the colors like this.