An electrowetting element comprising: a first fluid; a second fluid immiscible with the first fluid; and a support plate including: an electrode for use in applying a voltage to control a configuration of the first and second fluids; and a plurality of layers (28, 128) between the electrode and at least one of the first or second fluids, including: a first layer (30, 130) comprising a first plurality of through-holes (34, 134), which pass substantially directly through the first layer, wherein the first layer (30, 130) has been formed using a dry process; and a second layer (32, 132) comprising fewer through-holes, which pass substantially directly through the second layer (32, 132), than the first layer (30, 130), wherein the second layer (32, 132) has been formed using a wet process, the first layer (30, 130) disposed on the second layer (32, 132), between the second layer (32, 132) and the at least one of the first or second fluids. a first fluid; a second fluid immiscible with the first fluid; and a support plate including: an electrode for use in applying a voltage to control a configuration of the first and second fluids; and a plurality of layers (28, 128) between the electrode and at least one of the first or second fluids, including: a first layer (30, 130) comprising a first plurality of through-holes (34, 134), which pass substantially directly through the first layer, wherein the first layer (30, 130) has been formed using a dry process; and a second layer (32, 132) comprising fewer through-holes, which pass substantially directly through the second layer (32, 132), than the first layer (30, 130), wherein the second layer (32, 132) has been formed using a wet process, the first layer (30, 130) disposed on the second layer (32, 132), between the second layer (32, 132) and the at least one of the first or second fluids. an electrode for use in applying a voltage to control a configuration of the first and second fluids; and a plurality of layers (28, 128) between the electrode and at least one of the first or second fluids, including: a first layer (30, 130) comprising a first plurality of through-holes (34, 134), which pass substantially directly through the first layer, wherein the first layer (30, 130) has been formed using a dry process; and a second layer (32, 132) comprising fewer through-holes, which pass substantially directly through the second layer (32, 132), than the first layer (30, 130), wherein the second layer (32, 132) has been formed using a wet process, the first layer (30, 130) disposed on the second layer (32, 132), between the second layer (32, 132) and the at least one of the first or second fluids. a first layer (30, 130) comprising a first plurality of through-holes (34, 134), which pass substantially directly through the first layer, wherein the first layer (30, 130) has been formed using a dry process; and a second layer (32, 132) comprising fewer through-holes, which pass substantially directly through the second layer (32, 132), than the first layer (30, 130), wherein the second layer (32, 132) has been formed using a wet process, the first layer (30, 130) disposed on the second layer (32, 132), between the second layer (32, 132) and the at least one of the first or second fluids.