There are a lot of duck game stages, and the vast majority of them use the default assets. After you've played a lot of duckgame these default assets get boring to look at, and in general people prefer to subscribe to stages with unique art.
If you're going to spend time in making a stage, and if you want to publish it so other people will have to look at it, then please spend a minute on having the stuff in it be custom art.

Go into C:\Users\Your Name\Documents\DuckGame\Custom. In here are the folders for the different types of art you can use to make a level. You can also go inside of the folders, then go into the folder in that which says downloads to see art from maps you've previously played on.

When in the editor, place a custom block or parallax or whatever, then press the key or button for edit and then it will ask you to choose a file. If will only show stuff that's in the relevant Custom folder, so make sure whatever you want to use is in there.

Parallaxes are usually 320x240. You can have it be wider than that, but not taller.
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