There should be an option on Agent Select where you could change your skin variants, so they could match your agent colour scheme. For example, if you are playing Phoenix because the map is Ascent, then you can choose the Red Elderflame Va...

Wish we had a feature to exchange skins with our friends. Like i can take his reaver op and give him my elderflame op. To prevent scams riot can apply some criteria like 25 matches played together or friends for 7 days or more.