A rasterizer implementing a single edge stepping interpolator to interpolate both diffuse and specular lighting components across an edge of the primitive, andor a single span stepping interpolator to interpolate both diffuse and specular lighting components across the spans of the primitive. In one aspect, a brace portion is integrally formed along with two tubular fork members and an overlay fits in a mating relationship with the brace portion to create a unitary, tubular brace. A computer-executable program is then generated based on the trained pattern classifier, and the program is installed and executed on a subscribed identity module of the terminal. The user may take an action relative to the displayed notification without accessing the computer process that issued the notification and a reply that includes an indication of the action taken by the user may then be generated and sent. An insulating layer is disposed on the capping layer and includes a first opening extending to a part of the shielding electrode.