Since we have a lot of new K+ members, I’d like to make a post to explain how to change your profile skin since there seems to be some confusion:
Step 1: Open up your profile
Step 2: Select the dropdown menu options 
Step 3: Select “Choose Skin”
Step 4: Choose skin you want, then select “hide this widget”.
New skins are added every so often, so check back for more updates later on.