I say, and with God's success: Everything you see during the usual menstrual period that is a color of menstruation other than pure white: such as red, black, saturated yellow, green, weak yellow, muddy, and turbid. It is distinguished between muddy and turbid in that muddy tends towards white and turbid towards black. Refer to: Al-Wiqayah and its explanation by Sadr al-Shari'ah, p. 122, and Al-Hadiyyah al-'Alaiyyah, p. 44, and others. And God knows best.