ꬷ

Design
Slight degree of a diacritic is indicated with parentheses, in this case ⟨◌᪾⟩ aligned with the tilde of the ⟨ɫ⟩. The tilde and parentheses have come to be written with a single line.

Symbol

 * 1)  a lightly velarized a.k.a.  not-very dark l (less than ɫ|).