我阅读了以下开发电子邮件删除“背景和标志”，当我阅读这部分时：
Note that this does not completely remove the ability for extensions
(e.g. Dropbox) to add emblems programmatically by using the
libnautilus-extension library, just the user-added emblems from the
properties dialog/emblems sidebar.
有能力以编程方式带来标志。那么，我怎样才能libnautilus-extension library像 Dropbox 那样添加一些标志呢？或者是否有任何调整工具？