Click the button that says ‘Letter’ to change the letter. Click the button that says ‘Background’ to change the background. Tap ✅ to preview your icon. Then take a screenshot (Mac: Command+Shift+4 then select the space. Mobile: Power+Home (or Power+Volume Button for the new iPhone models), but don’t hold too long!).
100% by me. IMPORTANT: If you are on a Raspberry Pi or Amazon FreeTime Tablet, you can not take a screenshot. Sorry, but for this program, you can only use iPhone, iPad, MacBook, and PC.