private void UpdateHistograms()
{
(int[] rCounted, int[] gCounted, int[] bCounted) =
mAppState.Area.CountPixels(mBitmapManager.GetProperBitmap(mAppState.Filter));
HistogramR.UpdateData(rCounted);
HistogramG.UpdateData(gCounted);
HistogramB.UpdateData(bCounted);
}
