We are trying to make the "climate" control panel light up in the cabin ... it turned out somehow ... in general, you will see everything yourself =) - Toyota Corona, 1.8 liter, 1992

Have you ever seen interior lighting in an Audi or VW, that's what I was aiming for. The green illumination of the devices somehow, in my opinion, looks democratic, but I wanted something more fun, so I proceeded to analyze this device. In the last photo, a prism that scatters light from one bulb to 4-5 buttons, then we paste over its ends with red tape