In openlayers.css .olControlRulerItemInactive and .olControlRulerItemActive refers to the measuring-stick.png background image.
.olControlRulerItemInactive should refer to measuring-stick-off.png and;
.olControlRulerItemActive should refer to measuring-stick-on.png.
As a result the measuring stick icon is not visible above any maps.
Comments
Comment #1
jpulles commentedSorry, I changed the ruler images to use a single png file but apparently forgot to add that one. It's added now.
Thanks.