An actuator assembly for an aerosol system that dispenses texture material. The actuator assembly comprises an actuator member and an outlet structure. The actuator member comprises a valve stem that defines a first portion of a fluid path. The outlet structure defines a second portion of the fluid path and an adjustable outlet orifice. The outlet structure is arranged adjacent to the actuator member such that fluid flowing along the first portion of the fluid path flows through the outlet orifice. The spray pattern of the texture material flowing through the outlet orifice is determined by the cross-sectional area of the outlet orifice. The cross-sectional area of the outlet orifice is arranged such that the spray pattern of the texture material causes the texture material to be deposited on a target surface in a desired texture pattern that substantially matches a pre-existing texture pattern.