Collapse and reduce the height of hierarchical category and taxonomy panels in the WordPress admin.
It’s always bugged me that when editing a post the categories panel takes up so much height if you only have a few categories. This is also the same for custom hierarchical taxonomies.
This plugin just adds a couple of styles to your admin to override this and collapse that space.
I have created a patch for this which will at some point hopefully make it into WordPress core. You can follow the progress of the patch here.
In the meantime, you can install this plugin…