This application is a free basic image editor, similar to Microsoft Paint, but aiming at the GNOME desktop.
https://maoschanz.github.io/drawing/

Fira Code is a free monospaced font containing ligatures for common programming multi-character combinations. This is just a font rendering feature: underlying code remains ASCII-compatible. This helps to read and understand code faster.

Patterns for cinnamon.

This pattern is based on Linux Mint's applciation perference.