Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  472a042f7cc130b20a34c7d8088402976cce4206

alpha: diff view use background color rather than text color

arguably I find this more readable

patchset 2: made the colors a bit lighter (jgonera)

Change-Id: If70c897e5cad55cb0154a16785e81d7849fea087