Laterna

Spotlights, bulbs, fixtures and a rod, with cased lamps on the right. A cased lamp is an opaque core inside a clear case, and its colour carries onto the wall behind it.

Orange lamps, slabs and panels lighting a dark room. A white frame reads as a bright outline; a black one leaves nothing but the glowing face.

Full lamps on a row of pillars, in the lamp's own frame, in black and in white.

All sixteen dye colours, with half the wall switched. A normal lamp is dark until redstone reaches it. The colours are the game's own dye values, so they agree with wool and concrete.

The same sixteen in the same places, built from inverted lamps instead. Redstone turns these off rather than on, so every one of them is the reverse of the shot before.

One colour, three frames - the lamp's own, fixed black, fixed white - unlit above and lit below.

The same six seen from over the top. A fixed frame is the whole block's frame, sides included.

Panels above and slabs below, each in the three frames. Horizontal and vertical are separate blocks, and one crafts into the other.