Function addCustomBtn

scripts/insta_injectDownloadBtn.js:279–303

(node, iconColor, appendNode)

        }

        function addCustomBtn(node, iconColor, appendNode) {
          // add download button and set event handlers
          // add newtab button
          let newtabBtn = createCustomBtn(
            svgNewtabBtn,
            iconColor,
            "newtab-btn",
            "16px"
          );
          appendNode(node, newtabBtn);

          // add download button
          let downloadBtn = createCustomBtn(
            svgDownloadBtn,
            iconColor,
            "download-btn",
            "14px"
          );
          appendNode(node, downloadBtn);

          if (prefetchAndAttachLink) {
            onMouseInHandler({ currentTarget: newtabBtn });
            onMouseInHandler({ currentTarget: downloadBtn });
          }
        }

        function createCustomBtn(svg, iconColor, className, marginLeft) {
          let newBtn = document.createElement("a");