how can i toolbar button icon change?

[BearHumanS]

ex. bold button icon >> react icons font awesome 6 FaCss3Alt

const config = {
  
   toolbarButtons: {
     moreText: {
       buttons: [
         "bold",
         "italic",
         "underline",
         "strikeThrough",
         "subscript",
         "superscript",
         "fontFamily",
         "fontSize",
         "textColor",
         "backgroundColor",
         "inlineClass",
         "inlineStyle",
         "clearFormatting",
       ],
     },
     moreParagraph: {
       buttons: [
         "alignLeft",
         "alignCenter",
         "alignRight",
         "formatOLSimple",
         "alignJustify",
         "formatOL",
         "formatUL",
         "paragraphFormat",
         "paragraphStyle",
         "lineHeight",
         "outdent",
         "indent",
         "quote",
       ],
     },
     moreRich: {
       buttons: [
         "insertLink",
         "insertImage",
         "insertVideo",
         "insertTable",
         "emoticons",
         "fontAwesome",
         "specialCharacters",
         "embedly",
         "insertFile",
         "insertHR",
       ],
     },

     moreMisc: {
       buttons: [
         "undo",
         "redo",
         "fullscreen",
         "print",
         "getPDF",
         "spellChecker",
         "selectAll",
         "html",
         "help",
       ],
     },
   },
   imageAllowedTypes: ["jpeg", "jpg", "png"],

   height: "434",
   width: "100%",
   quickInsertEnabled: false,
   videoInsertButtons: ["videoBack", "|", "videoByURL", "videoUpload"],
   paragraphFormat: {
     N: "Normal",
     heading1: "Heading 1",
     H2: "Heading 2",
   },
 };