Image don't displed in contextMenuPopup

I try to create my own buttons for contextMenuPopup, but don’t see icon (path is correct)

{
              dataElement: "test",
              type: "actionButton",
              img: "./icon.png",
              onClick: () => {
                console.log("clicked")
},

Documents - Visoplan - Google Chrome 2022-05-30 13

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