Currently my BarLegend looks like:
BarLegend[{(ColorData["Rainbow"][Rescale[#, {0, .125}]] &) , {0, .11} }]
I would like to add white (maybe dotted) lines to Barlegend at positions {0.02, 0.04, ...} such that it looks like
Since I'm not only creating one plot & BarLegend, I'd also like to manually place the ticks & labels of BarLegend to make sure the ticks & labels are at the same positions as the white lines. For example: I'd like to place the ticks, labels, and white lines at {0.03, 0.06, 0.09}.
How can I achieve the lines and the custom placement?