bind or unbind key for "swim down" action

Description

The user interface features two primary buttons labeled "BIND" and "UNBIND," both associated with the action of "SWIM DOWN."

• BIND Button: This button is labeled with the word "Space," indicating that pressing the spacebar will set or confirm this specific action for swimming downward. The design employs a simple, straightforward label that clearly conveys its function.

• UNBIND Button: This button appears next to the BIND option, accompanied by a visual symbol resembling a floppy disk, commonly associated with saving or removing settings. This indicates that pressing this option will remove or reset the binding of the "SWIM DOWN" action.

The labels are set against a dark background, making the text and icons stand out, which helps in quickly identifying the function of each button. The overall layout is clean and intuitive, allowing for easy interaction during gameplay.