This plugin shows in the status bar how far the selected line last character is from a ruler. If multiple rulers are defined in your settings, the indicator uses the closest as reference.
RulerProximityIndicator is available via Package Control, which is the easiest way to install it. Alternatively, you can download this repository and place it in your Packages directory.
Helps to write "code separation" comments when the gutter and the rulers are disabled.
Examples:
The last character is away from the ruler, on the left.
The last character is 2 columns away from the ruler, on the right.
The last character is right on the ruler's column.
