Buttons

<StandardButtonGroup
    color="primary"
    shape="round"
    size="small"
    variant="filled"
    width="default"
>
    <Button>
        Button 1
    </Button>
    <Button>
        Button 2
    </Button>
    <Button>
        Button 3
    </Button>
</StandardButtonGroup>

Standard button groups

<StandardButtonGroup>
    <IconButton icon="skip_previous" />
    <Button><Icon icon="play_arrow" /> Play</Button>
    <IconButton icon="skip_next" />
</StandardButtonGroup>

Connected button groups

<ConnectedButtonGroup type="multiple">
    <ToggleIconButton icon="videocam" value="video" />
    <ToggleIconButton icon="volume_up" value="sound" />
    <ToggleIconButton icon="mic" value="mic" />
</ConnectedButtonGroup>
<ConnectedButtonGroup type="single">
    <ToggleButton value="horizontal">Horizontal</ToggleButton>
    <ToggleButton value="vertical">Vertical</ToggleButton>
</ConnectedButtonGroup>