Currently, choropleth maps have an annoying feature where if you're using sequential coloring of geometries, the minimum color is always white (0xFFFFFF) and whatever is specified in the source for .minimumColor is ignored. Divergent coloring allows you to specify a .minimumColor, but it still routes the midpoint through white. On maps either without colorful tiles specified or with white backgrounds, having a white color for your data makes the visualization difficult, to say the least.
Would it be possible to change the functionality of mapping.choroplethLayer.colorMode and .minimumColor such that when in sequential mode, the minimum color can be specified, as shown in the following example?
<option name="mapping.choroplethLayer.colorMode">sequential</option> <option name="mapping.choroplethLayer.maximumColor">0x0000FF</option> <option name="mapping.choroplethLayer.minimumColor">0x00FF00</option>
(Bonus points, it would be nice if there were a mapping.choroplethLayer.middleColor for divergent coloring.)
There are lots of cases documented here in Answers of people who would be able to benefit from this functionality, and some where people have had to resort to kludges to work around the lack of this feature.