Board Thread:Support Requests - Getting Technical/@comment-30718870-20180406072356

In the contributions there are red numbers and green numbers

Example: 05:43, March 30, 2018 (diff | hist). . (-20)‎ . . Page ‎ (Editing a gallery) (top) 05:41, March 30, 2018 (diff | hist). . (-60)‎ . . Page ‎ (They aren't even characters...) 05:39, March 30, 2018 (diff | hist). . (+19)‎ . . Page‎ (Adding categories) (top) 23:36, March 29, 2018 (diff | hist). . (+39)‎ . . ‎ page (Adding categories) (top)

The -20 and the -60 are red and the others are green What do they mean? (Removed some bits and replaced with the word "page" due to not being the same wiki as this) 