I’ve spent many months building an ecommerce marketplace with MarketPress and Gridmarket, including modifying underlying files. I see Gridmarket is now “legacy” on your site, which generally indicates support will be waning. I now realize going forward I should be using a responsive theme. I see SimpleMarket is responsive but that choice puts me back in the legacy category (less support, fewer updates).
Please recommend a responsive theme or themes that will allow me to use what I’ve learned and customized while combining MarketPress with Gridmarket. I’m looking for an easy transition and don’t see Upfront as an option, unless you have a “starter” theme comparable to Gridmarket coming real soon.