I am putting toghter a new theme. One of the setting is a "logo" element.
Currently, I am using a text field that holds the URL for the logo image.
I wish to store the image inside Moodle's File storage. soewhere. does not matter (maybe part of the theme?)
I found only the "admin_setting_configfile" class. but it has no "Browse" button to upload a file. It only has a file-path text field to the moodledata. which is not that different then the text field class i am already using.
How do I add a file picker to the theme's setting page.