

Emoji: Emojis are already square images that are mobile-friendly and can be decoded in a million different ways.Game elements: Inventory items in a lot of games, like these Dark Souls items, are easy to set as icons because most are designed to fit into a square and transparent PNG images of the items are easily found on fan sites and game wikis.

While most custom icons are theme-driven - using color palettes or pictures based on a wallpaper - here are some more ideas for custom icons or where to pull them.

With that kind of freedom, it can be a bit daunting finding inspiration for your icons when theming your phone. Most third-party launchers like Nova Launcher let you set any image you want as an app icon.
