Is there a way to change folder icons placed in the favourites sidebar, in Finder?

I'm using a OneDrive folder to place all of my music there instead, and placed the folder into my favourites. Dragging it in there only gives the default folder icon.

If I pasted the folder icon from the original "Music" folder (that has the quaver/musical notes icon) into the new Drive folder, through "Get Info", the small icon in favourites still remains the same default foler icon.

It's just for aesthetic purposes so it's not critical, but I'm curious to find out if there's a way to also change the smaller icons on the Favourites tab.

You may refer to the photo below. You can see I've changed the icon on the Music folder from my OneDrive (note: it's not the original Music folder), but that on the Favourites sidebar the smaller icon still remains the same blue folder.

Thanks!