# Category Icons **URL:** https://meta.discourse.org/t/category-icons/104683 **Category:** Theme component **Tags:** official, deprecated, category-icons **Created:** [December 19, 2018, 4:22pm UTC](https://meta.discourse.org/t/category-icons/104683 "2018-12-19T16:22:44Z") **Posts on this page:** 1 **Showing post:** 54
### Author: ![Remah](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/remah/32/70590_2.png) [@Remah](https://meta.discourse.org/u/Remah) #### Post date: [January 10, 2020, 11:20pm UTC](https://meta.discourse.org/t/category-icons/104683/54 "2020-01-10T23:20:47Z")
> [@rogerco](#): > > I think this is actually a Discourse problem as slugs should be unique across the whole discourse instance, but they are not. I don’t understand why the slugs need to be globally unique when, AFAIK, they never have a global scope. Can you explain? P.S. I see your new topic which asks the question why they aren’t unique. > [@Subcategory names unique rules?](https://meta.discourse.org/t/subcategory-names-unique-rules/138278): > > It seems that subcategory titles and slugs only have to be unique within their parent category. It is possible for subcategories in different categories to have the same slug (and title) Is this a good idea? Is there a separate categoryID that we don’t see anywhere that is used as a key field? I can understand that it is useful to have the same title for a subcategory in different places (for example many categories might have a “Help” category, but shouldn’t the slug at least be unique (perh… --- _[View the full topic](https://meta.discourse.org/t/category-icons/104683)._