How do I have the button icon change to the alternate icon when pressed?
For example, I want the icon to switch from the USA Flag to the Japanese Flag when I'm switching between keyboards.
Convert the picture to base64 format and output it in json format, for example
set activeKbdLayout to do shell script "defaults read " & "~/Library/Preferences/com.apple.HIToolbox.plist"
if activeKbdLayout contains "keylayout.ABC" then
set activeKbdLayout to "iVBORw0KGgoAAAANSUhEUgAAADwAAAAkCAYAAADVeVmEAAABHmlDQ1BBcHBsZSBSR0IAACiRlY69SsNgFIafLxaUDqFIKC7ChwUnf0rvIM1QBIcaiiSZTNIQxVg/0s+fTi69CC+ii6OD4AXopHgFDu6CdHBwSCWIYPFZznveczjvAWMlVCozanAy0LnbaUvPD+TiKxXq1GhghfFQ2d3uLsB3/cnHCwLgaTNUKvs9/5NqPxnGwCfQj1WuQRwAjQutNIgxYEXHSoO4Bqzc8wMQE8BKC30PWFGhnwEr77kOiDfAjAo9Bcy05zpgLAHmLBegaiuVJdLttP/5/Dx0cqkBnFM1yo/SQy2LpJ1BvLUhW81WEzw/kMX2+x4CEPWH0ispvdEd2C5UbktvfwqTbVhdKL31NVi+ghsVn+XnszNCPMK8/gtge0uOCkjqVgAAAAlwSFlzAAAWJQAAFiUBSVIk8AAABRJpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDYuMC1jMDAyIDc5LjE2NDM1MiwgMjAyMC8wMS8zMC0xNTo1MDozOCAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvIiB4bWxuczpkYz0iaHR0cDovL3B1cmwub3JnL2RjL2VsZW1lbnRzLzEuMS8iIHhtbG5zOnBob3Rvc2hvcD0iaHR0cDovL25zLmFkb2JlLmNvbS9waG90b3Nob3AvMS4wLyIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9tbS8iIHhtbG5zOnN0RXZ0PSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUvUmVzb3VyY2VFdmVudCMiIHhtcDpDcmVhdG9yVG9vbD0iQWRvYmUgUGhvdG9zaG9wIDIxLjEgKE1hY2ludG9zaCkiIHhtcDpDcmVhdGVEYXRlPSIyMDIwLTA0LTIyVDE2OjM1OjIwKzA4OjAwIiB4bXA6TW9kaWZ5RGF0ZT0iMjAyMC0wNC0yMlQxNjozNzozNiswODowMCIgeG1wOk1ldGFkYXRhRGF0ZT0iMjAyMC0wNC0yMlQxNjozNzozNiswODowMCIgZGM6Zm9ybWF0PSJpbWFnZS9wbmciIHBob3Rvc2hvcDpDb2xvck1vZGU9IjMiIHBob3Rvc2hvcDpJQ0NQcm9maWxlPSJBcHBsZSBSR0IiIHhtcE1NOkluc3RhbmNlSUQ9InhtcC5paWQ6NTVhYzkxMjUtN2Y2Mi00MGUzLWFiODMtYTU4NmFjODM1NTAxIiB4bXBNTTpEb2N1bWVudElEPSJ4bXAuZGlkOjU1YWM5MTI1LTdmNjItNDBlMy1hYjgzLWE1ODZhYzgzNTUwMSIgeG1wTU06T3JpZ2luYWxEb2N1bWVudElEPSJ4bXAuZGlkOjU1YWM5MTI1LTdmNjItNDBlMy1hYjgzLWE1ODZhYzgzNTUwMSI+IDx4bXBNTTpIaXN0b3J5PiA8cmRmOlNlcT4gPHJkZjpsaSBzdEV2dDphY3Rpb249ImNyZWF0ZWQiIHN0RXZ0Omluc3RhbmNlSUQ9InhtcC5paWQ6NTVhYzkxMjUtN2Y2Mi00MGUzLWFiODMtYTU4NmFjODM1NTAxIiBzdEV2dDp3aGVuPSIyMDIwLTA0LTIyVDE2OjM1OjIwKzA4OjAwIiBzdEV2dDpzb2Z0d2FyZUFnZW50PSJBZG9iZSBQaG90b3Nob3AgMjEuMSAoTWFjaW50b3NoKSIvPiA8L3JkZjpTZXE+IDwveG1wTU06SGlzdG9yeT4gPC9yZGY6RGVzY3JpcHRpb24+IDwvcmRmOlJERj4gPC94OnhtcG1ldGE+IDw/eHBhY2tldCBlbmQ9InIiPz6TOTmqAAAEhklEQVRogeWZz2sTaRyHn5m3zhurYzQYqjVYbKlUF0HMRStID1tLCz3ZQy/e/BsKe1hv/Qu8+C/o1pb+SNCsYkCCCqG0C4oRg8SSEqWabGacH5mZzp62l9311Jnsrs/5fXmfD+/7zvt931FGRkbqpmn2SymNiYkJZmZmOHfuHFJKwjAkDEP+SyiKgqIodDod3r17x+LiImtra5imqeu6vk0mk2lns9nw/i/3Q9d1w/8bnueFuXwuvHr1atjf399meHi4/WDxQbe9IqfwayG8cOFCW52ammJqcqrbKzFyxn8cZ3p6GuXly5ftbDarCyG67RQ56+vrhuI4TltKqXdbJg46nY6hSim77REbmqahdlsibnriHKxWq/H+/XuCIEAIwenTpxkcHIxTIb7AlmUxPz9PqVRCCIHneVy5coW7d++iaVpcGvEF/vjxI8VikUajweHDh2m324RhyNbWFkNDQ3FpxLeHC4UCvu+TSqXo7e0lnU7j+z75fD4uBSCmwO12m4cPHxIEAVJKpJRomobrujx69AjHceLQAGIK/OHDB968eYNhGPT19XHr1i0SiQS2bVOr1ahUKnFoADEFzufzWJYFwNmzZ7l58yanTp1CCIFpmqyursahAcQQuNlsUigUsG2bVCpFNpvl2LFjXL58GV3XMU2TYrGIbdtRqwAxBK5UKmxtbeE4DslkkrGxMYQQXL9+nUQiged5bG9vUy6Xo1YBIg7sBwFruRyO46BpGmfOnGFkZASAixcvkslk0DQNy7JYW1uL5bEh0sC/t1oUnz7FsixSqRSjo6MoigJAIpFgdHSUI0eOYJompVIJ0zSj1AEiLjzW19dpNBoIIUgkEjSbTe7du4eqquzu7mLbNlJKenp62NnZ4dmzZ0xNRXs3V8IwbAP7fj10XZe5uTlWVlYQQqAoCkIIgiAgDENUVUUIge/7APi+z+TkJHfu3CHCu7kR2Qy3Wi1KpdJeseF5Ho7jEATBXhshBJqm7e3jcrlMs9nk+PHjUWlFt6RLpRLNZhPXdUkmk8zOzjI4OEgQBOzu7u7NcKVSYXFxkSAIaLVaPH78mNnZ2ai0oglsWRa5XI4gCPB9n3Q6zdzcHL29vX9p+/nzZ548ecKXL19wXZdcLseNGzc4cOBAFGrRfKV3dnYol8vYto2u62Sz2b8NC3D06FEuXbrEwYMHsW2bV69e0Wg0otACIgq8srJCvV6n1WohpWR8fPwf2wohmJiYAMAwDOr1OgsLC1FoAREE/vr1Ky9evODQoUPous7AwADXrl37Zp+xsTEymQzJZBJN03j+/DmdTme/1YAIjqUgCGg0GntVk5SSdDr9zT5hGPLp0yc8z9s7sk6ePImq7vt8GJGdw/9SjO/u1VL9s9L5HvB9H7VarXbbIzaq1Srq8vJytz1iY3l5GXVpaYmNzY1uu0TOxuYGS0tLCN/3f3r79q08/8N5TvSd6LZXJGz+tsntn2/z+vXrjjI8PFw3DKN/YGDAmJmZYXp6mqGhIXp6Yv0Ls+/4vk+1WmV1dZWFhQVqtZqu6/r2H+GUq0oMIzsfAAAAAElFTkSuQmCC"
else if activeKbdLayout contains "keylayout.Pinyin" then
set activeKbdLayout to "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"
end if
return "{"text":" ", "icon_data":"" & activeKbdLayout & ""}"
Can help please how do you do it?