Barebones
Just gave this a shot. It's a cool concept but pretty clunky. Navigating the canvas in particular - missing patterns from Photoshop/Figma like holding space bar to get a "hand" tool to move the canvas around. Selecting items from the sidebar doesn't zoom to them. Feels like a 0.5 instead of 2.0 app. Honestly I'd recommend Xcode previews over this for designers.