Just tried out the 0.2.0 release. Some comments:
* First of all, I like the new features! The fill mode and eyedropper are really handy. Definitely solid quality-of-life improvements there.
* It would be nice if we could have a way to do each command that doesn't involve right-clicking. Right-clicking is kind of a pain on a Mac and/or on a laptop. (What I'd really prefer is the Photoshop "I" key command to eyedrop.) Alternatively, a way to remap key bindings.
* I encountered a slight weirdness where I couldn't click on the same tile I just changed to change it to a different tile. For instance, if I'd select tile type "A" and click at tile (2,2), then go over and select tile type "B", and go back to click at tile (2,2), it wouldn't change to tile type "B". If I go to any other location on the map, like at (3,3), and click there, it would change as expected, and if I then went back to (2,2) and clicked again after clicking somewhere else, it would also change. It just seems to happen to the last tile you changed. Not a huge deal, but it bit me a few times, and I suspect it's a simple fix.
* When I go fullscreen, it letterboxes with white (or maybe a light gray), which makes it hard to focus on the map content. I think I would definitely prefer black or a dark gray color, if you have control over that. Or better yet, extend the map and tileset panels to fit the screen so that there's no letterboxing.
Anyway, nice update! I don't think I could use this in production until we get layers and/or metadata support, but it's sure pleasant to draw maps in already.