Extracted the contents of MarketTheme.zip/MarketTheme into the Themes folder. Set up the proper permission. Moved the MarketTheme.zip/Widgets.MarketTheme into the Widgets folder. Set up the proper permissions.
Selected the Market Theme via Settings > General.
The Market Theme widget is not viewable in Plugins or Widgets. Selecting a category from the main navigation and several other locations I get: MARKETTHEME.COLUMNS.TOGGLE in the main left navigation of the Market Theme hamburger menu drop down.
In the footer, several of the settings are placeholded by items like:
Resource string (market.address) is not found. Language ID = 5c01bbcaf44b120b55de66bf
Does not look like there is an associated Value with the String Resource 'market.address'
market.name seems to have Address associated as a value, not exactly sure what the reasoning is here. I am assuming it should be market.address.name -> Address and another market.address linked back to the store information field for Address.
For the mean time to fix this, I just added a new record to the English Language String resources section for market.address and manually filled in the address.