Retool organization users on the Business or Enterprise plan have the option to apply custom themes on a per-app basis. Previously, app themes were only available globally and required administator access. App-level themes apply only to the current app. If your organization does not have access to org-level themes, you can still set a custom app theme.
We've also added some expanded typography settings. You can set custom typefaces and font sizes. Not all custom typefaces may work with the line heights used in Retool apps (generally 1em-1.5em).