Idea of Medium Icons Icon
There is a square divided into four smaller squares inside. In the top left square is a zig zag line with a dot above. In the top right square is an icon of a sun. In the bottom left corner is a rounded leaf. In the bottom right corner is a cloud shape with a dot above.
This is a Medium Icons icon. It is available in PNG and vector. Downloading is free for PNGs up to 100x100px.