If semantic blocks are nested, the frame (i.e., the blue line to the left) is drawn twice. This does not only look ugly, but once we add icons, they will be placed on top of the line of the outer block.
An example is here where an important paragraph is nested in a solution process (for some strange reason it inherits the frame title of the outer environment, but is otherwise typeset correctly - blue color).
If semantic blocks are nested, the frame (i.e., the blue line to the left) is drawn twice. This does not only look ugly, but once we add icons, they will be placed on top of the line of the outer block.
An example is here where an important paragraph is nested in a solution process (for some strange reason it inherits the frame title of the outer environment, but is otherwise typeset correctly - blue color).