Style sheets can be applied to some URIs
only by passing non-null values for allow_list or block_list. Passing a
null allow_list implies that all URIs are on the allow_list. The style
sheet is applied if an URI matches the allow_list and not the block_list.
URI patterns must be of the form [protocol]://[host]/[path], where the
*host* and *path* components can contain the wildcard character (*) to
represent zero or more other characters.
Creates a new user style sheet.
Style sheets can be applied to some URIs only by passing non-null values for allow_list or block_list. Passing a null allow_list implies that all URIs are on the allow_list. The style sheet is applied if an URI matches the allow_list and not the block_list. URI patterns must be of the form [protocol]://[host]/[path], where the *host* and *path* components can contain the wildcard character (*) to represent zero or more other characters.