Nyall Dawson ff10cf48f4 Add balance by area mode
This mode attempts to assign colors in such a way that the total
area of features assigned to each color class is balanced. It helps
avoid larger features causing a single color class to appear more
dominant on a colored map.
2017-02-22 12:10:13 +10:00
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2017-02-22 12:10:13 +10:00