How do I add custom debuffs on Healbot?

How do I go about adding custom debuffs for the version of Healbot that's for 3.3.5? I know that it includes most of the end-game raids inside the settings but it doesn't incluide Ruby Sanctum and I want to specifically add fiery combustion and soul consumption. Do I just write the names exactly as they spelled or is there some other way?

(And before someone tells me to use Grid instead, just don't. I'm already used to Healbot now and it's what I'm most comfortable with)

As a priest, in mine they appear blue, as if they were magic, so a class like a Druid and a Shaman, who doesn't dispell magic by defaul, aren't showed as such. And as you said, to add a debuff you only have to write the exact name of the debuff (Make sure to pick a color to know it's a custom debuff).