Sublime Settings - OwnLocal/ruby-style-guide GitHub Wiki
The below default Sublime Text settings will set up an always-on ruler in column 100, and fix the tab/spacing issue. The colors and fonts, obviously, are up to you.
{
"color_scheme": "Packages/Color Scheme - Default/Solarized (Light).tmTheme",
"font_size": 16,
"ignored_packages":
[
"Vintage"
],
"indent_to_bracket": true,
"tab_size": 2,
"rulers": [100],
"translate_tabs_to_spaces": true,
"trim_trailing_white_space_on_save": true
}