The theme that Theme Press automatically uses for new spaces, until overridden.
When a new space is created, Theme Press automatically applies a chosen theme to that space. (You can override this at any time within space settings.)
Upon installation, Theme Press uses the built-in Lumen theme as the Theme Press Default Site Theme.
If the Theme Press Default Site Theme is changed:
all spaces using the default will change to the new theme.
newly created spaces will also use the new default.
spaces that have overridden the default site theme will not be changed.
If using:
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