# Development Info ui-\* cookies are for the client-side scripts only; in some configurations (eg with varnish cache) they will be stripped before they reach the server shm-\* CSS classes are for javascript to hook into; if you're customising themes, be careful with these, and avoid styling them, eg: - shm-thumb = outermost element of a thumbnail * data-tags * data-post-id - shm-toggler = click this to toggle elements that match the selector * data-toggle-sel - shm-unlocker = click this to unlock elements that match the selector * data-unlock-sel - shm-clink = a link to a comment, flash the target element when clicked * data-clink-sel Please tell me if those docs are lacking in any way, so that they can be improved for the next person who uses them