pub(crate) const OVERLAY_BUTTON_PADDING: Vec2;Expand description
A corner button’s inner padding, symmetric so the label is centred within the button it is grown to.
A bare [egui::Button::min_size] would leave the label sitting in a corner:
the button’s atoms are aligned by the surrounding layout, which is not
centred. Growing the padding instead — the same on every side — is what
pushes the label to the middle of the larger button.