Hi @meggriffin
To reduce the website width in the Tinker theme, you can follow these 2 simple steps:
Step 1: Go to Customize in your Shopify admin, then navigate to Theme settings on the left sidebar.
Step 2: Under Page Layout, select Narrow for the page width, then save your changes (Screenshot example: [link]).
This will center your content and reduce the stretched look on the sides.
Let me know if you need any more help!
Best,
Felix