There is a lot to say about this. But I totally see the benefit of a comprehensive tutorial on designing responsively with Microthemer. And I intend to set forth on this challenge. Thank you for the suggestion!
Simple task like Links Hover colour changes. When selected it gives under Colour {mix} and I cannot get the colour changed for each 1, 2, 3…. option listed below. If I select a colour it removes the {mix} and gives everything one colour with no roll-over effects