Are intermittent yellow discharges after dryness, continuing until the eleventh day of menstruation, considered part of menstruation? And is the ruling on yellowness after dryness the same as its ruling after the white discharge?

Yellowish and brownish discharges after seeing the signs of purity are not considered menstruation. The woman should perform istinja' (purification with water) and wudu' for prayer. If these discharges are continuous, her ruling is that of a woman with istiḥāḍah (non-menstrual vaginal bleeding).