This project is using two different licenses, which apply as described in the following section.

By contributing you agree to license your contribution under the terms of the GPLv3 (for code) and CC-BY 4.0 (for graphics) licenses. 
The corresponding license can be found in the LICENCE-CODE and LICENSE-GRAPHICS file respectively. 
The following links also reference the licenses:

GPLv3: https://github.com/Riesi/frog_emojis/blob/master/LICENSE-CODE

CC-BY 4.0: https://github.com/Riesi/frog_emojis/blob/master/LICENSE-GRAPHICS
