Entity jump button is inconsistent with all the other buttons

Steps to Reproduce:

1. Enable the new touch control scheme in the settings;
2. Switch to either the "Touch" or the "Crosshair" interaction models;
3. Ride any entity.

Observed Results:
The entity jump button is blurry and has semi transparent pixels outside the corners.

Expected Results:
The entity jump button has sharp visuals, with nothing out of its main shape.

Screenshots/Videos attached: Yes

Notes: This doesn't affect the texture displayed while the button is pressed.