I am creating an expense tracker, this summaries screen is picking up added expenses and creates an animated pie chart. we have the following issues. First expense: Only one segment, 100% of the circle, appears double thickness then desired

Second expense: Two segments, second appears thicker, first segment thickness becomes normal

Third expense: Three segments, third appears thicker than the other two. and goes on like this with added expenses.

Another issue I have is middle of the circle is dark bckground color, I don't want that, either same color with it parent card or transparent.