I'll tell you some basics. Most of the wet ones are dampness-dispelling, and the lumps are cold-expelling, indicating that blood lipids and blood sugar are high.

The white one is: bad lungs, the black one is: kidney is not good, and the red one is: bad heart.

Yellow is: bad spleen and stomach, green is: bad liver.

The corresponding color is that the corresponding organ is detoxifying.