This is a Wednesday* LITS puzzle. Well, actually, it is a LIA puzzle. Instead of shading a tetromino, L,I,T or S, shade a tetriamond, L,I, or A, shown below. Also, instead of the rule prohibiting forming a shaded square with 4 cells, now you are not allowed to create a shaded hexagon with 6 cells.
*The puzzles in this week are arranged not really by difficulty, but by polyiamond size, ranging from diamonds to hexiamonds.