FFF 6: LITS or LIST?

Fancy Fillomino February: This is a series of 28 (twenty-eight) 7×7 Fillomino puzzles over the February. Every 00.00 UTC+7 a new puzzle will be up. The basic Fillomino rules apply unless otherwise indicated.

LITS Fillomino Follow regular Fillomino rules. However, replace each polyomino of size 4 (tetromino) with one of L, I, T, or S, depending on its shape (each letter somewhat resembles the shape, but just in case (consider rotations and reflections as equal)). These tetrominoes must follow the rules of LITS; that is, they form a single polyomino, but there is no 2×2 area completely covered by these polyominoes (hence why there is no O tetromino), and no two identical tetrominoes are orthogonally adjacent (rotations and reflections, again, are equal).

Difficulty 4.5/10 Target time 2:00

FFF 6: LITS or LIST?
LITS Fillomino

A windmill is litsed– I mean, “listed” as one of Sky’s givens arrangements.

Six puzzles. This one is surprisingly difficult. However, as I tend to overestimate the difficulty, take my diff/time above with a grain of salt.