Allocation of different signal-to-noise margins to different carriers in a multi-carrier system is described. Using the kit, one may re-color their lip product by combining two or more lip products so as to customize the overall appearance and consistency of the product as desired by the user. The transreflectors are used in a transreflector system or display to transmit more of the light emitted by a backlight or other light source incident on one side of the transreflectors and reflect more of the light incident on the opposite side of the transreflectors. The first transistor is electrically connected between a data line and the common node, and a gate thereof is electrically connected to a first gate line. The core particles may have a surface modifying agent andor biologically active material, such as antigenic material or natural immunoenhancing factor, polynucleotide material, or therapeutic proteins or peptides, partially coating the particle or impregnated therein.