Zaznaczenie pola 2 Icon (PNG and vector)

This is a Zaznaczenie pola 2 icon. It is available in PNG and vector. Downloading is free for PNGs up to 100x100px.
This is a checkmark inside of a square with rounded corners. The square has four normal sides and three normal corners, but the top-right corner is open. The checkmark's tail would meet the top right corner if the square was complete.