Roblox apparently has done this for some desktop users via its icons. As you’ll see in the tweet below, the game has changed the icons for the player and studio programs.

An adaptation of Eltobb's wonderful Vanilla 2.1 Icons for Rojo & Roblox projects inside of VSCode. The Vanilla icon set was created by Elttob for use in Roblox Studio. Eltobb's Vanilla icons are ...

Enabling this option will extract the Roblox icons to a folder in Bloxstrap's installation folder. From here, open the properties for your shortcut by right-clicking on it, selecting "Change Icon", ...

The nine digit number that's inserted before /profile is your unique player ID. How to find your Roblox player ID on Mobile. Unfortunately, there's no way to obtain your player ID from the Roblox app.