I’ve been playing around with both MicroThemer and Simple Custom CSS and JS for a while. Obviously in terms of GUI MT rocks. Makes finding the correct CSS selectors much easier even without Chrome Inspector.
However, I found that lots of time I just need to tweak the design conditionally, for example, for the archive pages of a custom post type, a specific landing page, home page, and etc. Simple Custom CSS and JS works much like the default WP plugin structure: each snippet could be individually turned on and off (each of them is saved as an individual .css/.js file), and you could also apply conditions on them. I am just wondering if MT has something like this so that we could place some conditions as well?
In short, no. But this has been requested before by @NoahjChampion and is still on my mind, and the todo list. Here’s the discussion which outlines the plan: