I am working on a project called "banana" and now I wanna run the Scratch file I already wrote, but I can only find the green triangle which would say "run banana" when you hover over it, but no way to run my scratch file?
You can run your scripts by right-clicking, and clicking run. On Windows, you can also press ctrl + alt + F10. (shift + F10 on Ubuntu, or Shift + Control + R on OSX). If that doesn't work, something might be wrong with your python interpreter, make sure it's setup correctly.