[plugin / feature requests] Vertex colour picker

[slight]

I would very much like to be able to select a colour for vertex painting by clicking something of that colour, like the eyedropper tool in most 2D apps.

This would mean if there were a gradient across a face and and you picked somewhere in the middle, a new colour would be added to the palette and automatically selected. Otherwise, if the colour already exists in the palette it would simply become the selected colour.

While I am here making wishes, something else that would be fantastic is a non-destructive ambient occlusion, i.e. one that multiplies any existing vertex colours rather than overwriting them.