items with a key, label and children for each tab, and set defaultActiveKey to choose the one that opens first.type, color, tabPlacement, size, icons, centered and a disabled tab.type="floating" for an underline as wide as the label, with a rounded highlight behind the label on hover.type="padded" for a highlight that covers the whole padded tab on hover, with the underline spanning the same width.type="docked" for padded tabs that fill down to the bar on hover, with a thicker indicator under the icon and label.type="docked" with tabPlacement="end" for a side rail, where each tab is rounded on the side away from the rail.classNames.item to stack each tab's icon above its label, like the tabs of a bottom navigation bar.color="primary" to paint the indicator and the active label in the primary color on any type, instead of the neutral default.type="card" to put each tab in a box and join the active one to its panel, like the tabs of a file folder.type="editable-card" and handle onEdit to add tabs with the plus button and close them with the cross on each tab.size to small, medium or large to scale the tab bar, where large suits a page header and small a modal.tabPlacement to top, end, bottom or start to move the tab bar to any side, with every type, card included.centered to center the tabs in the bar, which suits a short set of tabs over a wide panel.disabled on an item in items to keep its tab visible but stop the reader from selecting it.Icon to an item's icon to put a glyph before its label, and it follows the active icon pack.label empty and put the icon with hidden text in icon for icon-only tabs that screen readers can still name.tabBarExtraContent a node for the end of the bar, or { left, right } for both ends, like a title and a New button.hideAdd to remove the built-in plus button and add tabs from your own control, like a New tab button at the end of the bar.indicator a size, as a number or a function of the tab's width, and an align of start, center or end.renderTabBar to wrap the default bar in a sticky element, so it stays in view while a long panel scrolls.destroyOnHidden to unmount a panel when its tab is not active, so anything typed in it is cleared when the reader comes back.classNames or styles to style one part of the tabs, like a tinted header and body with a colored indicator.Badge in the tab labels, listing members, pending invitations, requests and an audit log.