The theme's "Messy Business" (see the "title" in the main page description). It's usually pinned down on Friday. I'd suggest asking the RockNightStudios guys on their stream for next week? (This is a weekly event) Monday evening they stream the games from the Jam. You could also jam on Sunday and send them the game you make. It won't be in the Jam overview, but they still play it on stream normally. https://www.twitch.tv/rocknightstudios