When I am doing a course, the screen contains large circles in a single vertical stack which are obviously the skills (or whatever Memrise calls tham) but besides them there appears smaller circles with a number inside them. These small circles are in different circles. Now I think one of them indicates the number of words that need reviewing, but the other one (coloured orangeI think) gives me no clue what it indicates.
Is there any help pages showing what these circles mean? Or could someone explain the purpose of the orange circle is and any other little circles that may pop up from time to time.
