Deleting Test Photos from Thunkable Live

One part of my app includes taking photos. In development, I take dozens and dozens and dozens of 10MB photos while getting things to look and work right. How can I delete them and free up the wasted space? I see that the directory in my Android device where the photos are stored is: file:///data/user/0/ .

Using a simple file app tool (FX File Explorer), I find that the directory is blocked “Access was denied”. Any suggestions on how I can easily clean out the very large number of junk photos?

Thanks and Happy New Year!