Within the Theme tab of a flow, you can specify the underlying style settings of a flow. There you can define a consistent design system that will be used throughout the flow.
A given flow's theme will provide overlays on the base theme that it uses.
Formsort comes loaded with some great starter themes. These can be used as a basis for developing the perfect theme for your own flows.
To switch the base theme of a flow, click Edit... on the top right of the Theme tab, and go to Switch theme.
To switch the base theme of a flow, click Edit... on the top right of the Theme tab, and go to Save theme, and choose whether to make a new version of an existing theme or create a new theme entirely.
Published themes will be available for use throughout your organization.