Chromas in the Battle Academia shop
There are formal chromas for Kat, Graves, Yummi, and Jayce and they are average chromas. They barely change much about the color scheme, but they do change some of the patterns on the skins. They are alright but the border in the shop seems like a better deal than the chromas.
With the chromas you get the same icon but with a really weird silver pointy border around it. Some people probably like it but it just looks distracting and overwhelming to me. The borders come with the original icon without the border around the icon.
https://1.bp.blogspot.com/-K5Ai1klTmsY/XMib3nVA-rI/AAAAAAABSHg/spv45XwR07gfT6hpZ-Xlkhz2NzbOvOkLwCLcBGAs/s200/c7cc4338bb25b8e2.jpg https://4.bp.blogspot.com/-ghPJttbKTpA/XMib1nzDNPI/AAAAAAABSHQ/mBcFRmQjWtwIFXruNwTTJB7_WrpTf4dBgCLcBGAs/s200/88aa4692d8380832.jpg
https://4.bp.blogspot.com/-0Kc0bYMiy08/XMidM9L-g-I/AAAAAAABSLI/DLAMXFjEUrcy_XK8D4F4PNqycKKe8B7TQCLcBGAs/s200/e418f0e03e0edbe8.png https://3.bp.blogspot.com/-nXRkYjnWL94/XMiRtEAoNGI/AAAAAAABSGQ/5ouncbX2QfsMi2yOZ0U8RUpqgBkxTVJNQCLcBGAs/s640/D5a4WpjU0AA2jZv.jpg
The first icon is the one you get for buying the border, while the second one is the one you get for buying the chroma. The chroma on the top is the formal chroma and the one on the bottom is the normal Kat skin. There's really not much of a difference.
Honestly it seems like a better deal to get the borders because you get the original icon and also its 50 tokens less than the chromas.