Lost my saved brushes

Hello, I am kind of new to Aseprite, however I managed to do a set of custom brushes, around 20, and assigned them hotkeys. I worked with them for a while, around 1 week. The thing is that today when I opened my file to keep working, I realized the menu of the brushes was empty, only with 1 pixel brush in it. Is there a way to get back my set of brushes? or is there a way to do a backup of the brushes once done??

Thanks!!

I don’t think you can edit the brushes in the files from what I have seen, so I think you would have to save your brushes as images to do backups.