button_style: 'buttons' (default)

Edit/Remove always visible as separate buttons - the default, no ->button_style() call needed.

button_style: 'hover'

Same buttons as 'buttons', invisible until the row is hovered/focused - a quieter grid at rest.

button_style: 'ellipsis'

A single "..." button opens a small dropdown with Edit/Remove as menu items.

button_style: 'reveal' (icon + text)

Hover/focus a row to reveal a full-width action strip underneath it. 2nd arg true = icon + text.

button_style: 'reveal' (icon only)

Same reveal strip, 2nd arg false - icon-only buttons with the label as a hover title.