Sharing your creations to Steam Workshop is not the biggest hurdle to jump, but it does currently require a bit of extra elbow grease. This is an area we're constantly looking to improve, but in the meantime, the process looks a little something like this:

Unfortunately this isn't a guide on how to use Mondrian Maker, but that guide IS built into Mondrian Maker itself. Read through the mini manual in the upper-right hand corner to help you get started. When you're ready to share, you can move onto Step 2.

With your level complete, open click the "Play your Level" button and select "Open in Studio." In Mondrian Studio, you can create and save a Thumbnail for Steam Workshop! The only requirement is that the thumbnail must be in a 1:1 or 4:3 size ratio. Otherwise, move some sliders around, adjust the color scheme, select a background, and create a design that compliments your level. When it's done, go to the last tab (Snapshot Capture) and select "Save Thumbnail." A JPG will automatically save to the game's Thumbnails folder.

You can learn more about Mondrian Studio in YouTube: https://www.youtube.com/watch?v=Ya6YuOH5-mU

Back in Mondrian Maker, click the Share button (three circles on a bigger circle). If you have a [Your Level Name].jpg that matches [Your Level Name].mondrianlevel, the Share window will display your thumbnail, as well as a big Steam button! If there is a mismatch or a missing thumbnail, the thumbnail will be an oldschool-internet broken image icon and you won't be able to share just yet.

Before you submit, double check your Sharing options, which include Privacy, Type, and Entry.
Privacy

• Public: Anyone can download and play your level!
  
• Friends Only: Anyone on your friends list can download and play your level.
  
• Private: Nobody can download or play your level except you. Useful if you need to hop over to your laptop to keep working.

Type

• Level: Playable artistic creations, meant to be enjoyed by all.
  
• Template: Creations that are meant to be edited into new levels

Entry

• Freeform: A regular level or template. Unless a Gala is live, this button is locked to this choice.
  
• Gala Entry: A contest submission. When Galas are live, this becomes an option, and you can submit your creation for a chance at winning prizes like custom Thumbnail frames, Twitch subscriptions, and more!

Click the big Steam button to share your level to Workshop. Levels uploaded to Workshop will auto-sort based on the name of the current "Movement," ie the latest feature update. A progress bar will display while it's being uploaded, and you'll get a notification telling you when it's done! Levels should upload in just a few seconds. They'll be immediately visible on your profile, and will hit the public Workshop after a little bit of time.

And that's all there is to it! If you have any trouble, please let us know in the forums.
- Danny