HeaderIcon
type HeaderIcon = | 'sidebar-left' | 'sidebar-right' | 'sidebar-open-left' | 'sidebar-open-right' | 'sidebar-open-left-alt' | 'sidebar-open-right-alt' | 'sidebar-floating-left' | 'sidebar-floating-right' | 'sidebar-floating-open-left' | 'sidebar-floating-open-right' | 'sidebar-collapse-left' | 'sidebar-collapse-right' | 'collapse-left' | 'collapse-right' | 'open-left' | 'open-right' | 'double-chevron-left' | 'double-chevron-right' | 'home' | 'home-alt' | 'back-small' | 'back-large' | 'expand-large' | 'collapse-large' | 'expand-small' | 'collapse-small' | 'star' | 'star-filled' | 'chat-temporary' | 'settings-cog' | 'grid' | 'dots-horizontal' | 'dots-vertical' | 'dots-horizontal-circle' | 'dots-vertical-circle' | 'menu' | 'menu-inverted' | 'hamburger' | 'compose' | 'light-mode' | 'dark-mode' | 'close';
Icon names supported for header buttons and controls.