Principle of {\llogo META}{\llogo FONT} pictures

The principle is to make a new font where a picture is some ``character''. When we want to place the picture into the document, we change the font and type appropriate character. If the picture is too large or too complex, it is better to divide it into several characters and overlay them with \llap or \rlap commands or simply place the characters in the correct order (we will see it later).