The concept for the new design of the social network YouTube part of the union of several concepts: Theory, Practice and Result. For example, the RGB theory, practice when creating a video and the result of the union of theory and practice.
The RGB color model is an additive color model in which red, green, and blue light are added together in various ways to reproduce a broad array of colors.
The RGB color model is for the sensing, representation, and display of images in electronic systems, such as televisions and computers, though it has also been used in conventional photography.
Opaque structure with an opening (aperture) at its center.
The role of the diaphragm is to stop the passage of light, except for the light passing through the aperture.