First off, thanks for taking the time to contribute!
- Include the version of Munin you are using and the OS.
- Include screenshots whenever possible; they are immensely helpful.
- Include any relevant logs; the mere act of writing a detailed bug usually gives the answer.
- Include screenshots in your pull request if relevant.
- End files with a newline.
- Use the present tense ("Add feature" not "Added feature")
- Use the imperative mood ("Move cursor to..." not "Moves cursor to...")
- Use the standard commit formatting (look at the one already made)