Today's puzzle is a variant on the LITS genre. I don't remember seeing it before. Constructing it went smoothly, although there were some points at the end where it caused trouble to keep it unique. Hope you all like it.
Rules for LITS
Colour some squares to form a single contiguous wall. The wall has no 2x2 coloured areas anywhere. In each blackbordered region a shape of 4 orthogonally connected squares remains empty. Identical shapes in different regions can't touch eachother by a side. Rotations and reflections are considered the same shape.