Web Clips Icons

[Josh Avila]

So for the love of me I can't figure this part out. I'm on a IP hosted account so I just put this in my public directory and I figured I should be done. Is there a correct way to do this? I made my icon and dropped it into one of those online generators which spit out 30 different options for android, ios, etc.  Is there a setting that I'm overlooking or a plugin that could help me out with this.