I have created sidebar for my custom component by using the documentation -
I have to add some styling to the Joomla Collapsible Sidebar in admin side. I have searched but nothing found related to this.
As you can see in the image(this is just an example), Now I need to add some styling or change the design/layout of the sidebar.
How to change the styling/layout of the collapsible sidebar?
Also is it possible without hacking core?