You can make paint from almost anything. However, some colors fade in a few days and some are more permanent. Over time, with the experience I have gained, I make and use colors (inks) from avocado, pomegranate, hawthorn, spinach, gall from rose or acorn, red colors from moraine and cochineal, blue from borite, indigo and bird's tooth, yellow from safflower, reseda and turnips, also from various types of bark and cones, teas, nuts, as well as clay from earth, copper or rust. Some colors have to be made fresh, some are nicely settled. Anyway, I really liked that these mostly vegetable pigments do whatever they want and you never know the result. They react to the pH of the paper. You paint with a colorless decoction and you only get the color after it dries, or even after two days. It's a big unknown, you just don't have much control over it and that's how wonders are created :-D The colors then mature.
So the image changes its color during the first year. The images in the menu have already undergone this change.