This template is used to show that templates have been converted to useTemplateStyles. It is placed at the top of the template's /doc page. It automatically adds the template toCategory:Templates using TemplateStyles, or to one of its subcategories.
The syntax foractually doing a TemplateStyles is, of course:<templatestylessrc=""/> (with the page name in the quotation marks).
Note that if a sandbox version of the TemplateStyle exists, it will also be linked. This is only for sandbox versions. The subpage name of the sandbox version should be the same, but as a subpage of the templates sandbox. For example, if the TemplateStyles page name isTemplate:Foo/styles.css, then the sandbox version should beTemplate:Foo/sandbox/styles.css
This template adds pages toCategory:Templates using TemplateStyles if the page is in the template namespace, and it is not on any of the subpages /doc, /sandbox, /sandbox2 or /testcases. You can specify a different category with the|category= parameter, e.g.|category=Uses list TemplateStyles.