fix: minor typo in grayscale conversion #17
Merged
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The grayscale conversion takes 0..255 colors for the color indices determined in the first part of the algorithm and averages them and does some other stuff to convert them to a grayscale color.
Unfortunately, the existing code was taking the color indices instead of the 0..255 colors, which was causing the grayscale color to always be black, and rarely be chosen. This fix will improve conversion of grayscale colors.