How to add an custom field in add/edit course page ?

Re: Adding Bootstrap jQuery Plugins to a theme (Moodle 2.8 and earlier)

by Mohammad kabir -
Number of replies: 0

I add icon by code myself now. I want to upload icon through course settings page. So admin can change the icon himself.  

Want to add that custom field( for icon upload)  by plugin or something like that. Not by hacking core code.

If anyone have suggestion. Thank you.

Moodle version : 2.8