In the sunrise light — at 5:25 — the white flowers look yellow. Why are white flowers called "indigo"? The scientific name is Baptisia lactea — and "Baptisia" is based on the Greek word for "dye." I'm a little confused about whether the wild indigo with white flowers was used to make dye. I think the answer is yes, because the dye is made from the leaves. Here are some instructions, and, by the way, a major ingredient is urine.
This was my best sunrise picture. Today was a Type #3 sunrise — completely clear sky — and the sun had already crossed the shoreline when I reached my vantage point. It doesn't work to aim the camera right at the unclouded sun. You have to get your picture when the sun first peeks over the line or point your camera at something else.