Pause menu is an interface accessible by pressing the escape key during a game. This pauses the active game completely.
It offers the same configurable settings as the settings interface with addition of the options to either quit (saves the game and returns to the main menu) or to resume playing.
The interface is an opaque layout over the game screen. The majority of the options are presented on top of each other in the middle. The language selection in the top left corner and buttons to quit, apply (only appears after chaning the resolution), or resume in the bottom.