I found this question which is extremely cool and amazing
which also helped me in plotting and creating Venn Diagrams.
But there is something that is missing, and it's: "How to write something inside the diagrams?"
For example, if I wanted to write a text inside the coloured zones in the figure below, how shall I do?
Mathematica code used: the one in the accepted answer given in the linked question.
VennDiagram2[3, Subscript[A, 1] && Subscript[A, 2] && Subscript[A, 3] || Subscript[A, 2]]
Let's for example insert RED in the bigger zone, and GREEN, VIOLET, BLUE, BLACK; WHITE and so on in the other ones..