It's now conky -> i3bar. To enable colors, conky produces JSON output.
The script i3bar_wrapper.bash handles the invocation of conky and
redirects the output of i3bar to i3bar_clickparser.bash, in which click
events can be handled (none implemented right now).
conky/virtualarch.conky.dzen is a conky output suitable for dzen2, it
should produce the same output as conky/virtualarch.conky does with
i3bar and JSON.