My betta used to me solid red all over. The last week or so however he has started to get white around his face. I assume that's just marbling, the scales look normal, just a different color, and his behavior hasn't changed.
In the middle of the white, there is a shimmery green/yellow patch on both sides of the head. There is a similar material in the bottom of his eye. When I shine a light on him, many of his upper scales have a dot of the same color "stuff". I have no idea what this is, doesn't match the description of any of the diseases I read about. Help :(