Is it obligatory to repeat ghusl and fasting for one who became pure from menstruation in Ramadan, then a light brown discharge came out of her a day later?

If a woman sees blood during her menstrual period, even for one day, and then becomes pure, prayer and fasting become obligatory upon her. If the blood returns during her usual menstrual days, even if its color is brownish, it is considered menstruation and prevents prayer and fasting. She must perform ghusl (ritual purification bath) and make up for the missed fasts once she becomes pure.