window tapa - easy

Another hybrid.I like the new puzzle windows very much.Not that i did not want to post a classic windows puzzle. The diagonal touching constraint and no 2x2 square come up very often in the logic path of a windows puzzle, though the path in the puzzle shown below is not guided by any of the two.

Rules: Shade some cells such that each outlined 2x2 square contains 2 edge-adjacent shaded cells.All shaded cells form a wall of connected cells,without any 2x2 square of all shaded or all white cells.The wall cannot touch itself diagonally,or overlap the clue cells,or include an island of white cells.The clues work like regular tapa clues.