Changing All Markers' colors at once

I have put pins down on many locations and I decided to change their color and it’s very hard to do it one by one. Is there an easy to way to do it?

What application you are using? You might be better off asking at their services or communities. This forum is for the OSM map data.

im using umap.openstreetmap on windows, chrome browser.

im using umap.openstreetmap on windows, chrome browser.

See https://wiki.openstreetmap.org/wiki/UMap#Feedback_and_help

Also posted at https://help.openstreetmap.org/questions/84612/changing-all-markers-colors-at-once