Board Thread:Support Requests - Getting Technical/@comment-8868862-20150823131958/@comment-4731443-20150828004919

An image with no specified format (like the frequent "thumb") will be left-aligned by default. You can use thumb if you want, but on its own it will make it align to the right. What you really need whether or not you format it as a thumbnail is to specify the centering in the File wikitext, like so: