If you select "Item Creator" from the Menu, you can use patterns to create your own original items. You can also create your own brand logos.
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Acquire new patterns
Each pattern has a rarity and a category. When your Influencer Rank rises or you use the Gacha Machine, the patterns available to you will increase. After acquiring a pattern, you will usually need to unlock it with Creative Keys before you can use it.
Make a brand logo!
When customizing an item, press the - Button to select a brand logo. Although there are four logos provided at the start, you can edit them to create your own original brand logo.