Inside Roblox Studio, you can create new games by clicking + New tab on the left hand bar. This will bring up a series of templates for you to work from that can be sorted by theme or gameplay style.

Create an image that’s ideally 512x512 pixels and then upload it to ROBLOX via the Asset Manager in ROBLOX Studio. As T-Shirts are just a square decal as opposed to a full shirt, there isn’t ...

Go to the Roblox Studio and access the asset manager through the view tab. A T-shirt is the simplest design to create but fairly basic. Roblox utilizes images in .png, .jpg, .tga, or .bmp format.