Ruler not showing up in .md files in Sublime Text 2

Question

I cannot make the ruler appear in .md files. The setting "ruler": [80] is set in every possible place, including in the Default and User settings of the package Markdown Editing. Yet still, the ruler would not appear. I thought this was a color issue, but even after changing the background of the theme to black, the ruler would not appear. In every other file type the ruler appears. What other settings could I check?

Thanks.

Answer 1

The option's name is rulers here (although I am using sublime 3), so "rulers": [80] should work.