Customize the floating button

Hex values can be typed exactly, including three character shorthand, which is expanded for you, and recently used colors are kept so you can reuse them without retyping. You can set the icon color and the color of button text in the recording window, and choose a hover behavior of expand, lift, or none. Setting the icon or the button text to the same color as the background behind it raises a warning explaining that it will be hard to see, so the combination is flagged before you deploy it rather than after.