Node-red-dashboard logo in header
This flow uses a script template node added an base64 coded picture in the header.
Convert your picture on https://www.base64-image.de/ an paste it in qoutes after the 'logo.src ='.
Based on flow from this forum post https://discourse.nodered.org/t/logo-in-ui-title-bar-on-aws-server/8873
[{"id":"9f1e1fb.3fc78e","type":"ui_template","z":"c43b3632.a5fdb8","group":"a07824d3.1fe8b8","name":"Logo / Clock","order":10,"width":0,"height":0,"format":"<script id=\"clockScript1\" type=\"text/javascript\">\n $(function () {\n \n //add logo\n var div1 = $('<div/>');\n var logo = new Image();\n\n logo.src = 'data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=='\n logo.height = 45;\n div1[0].style.margin = 'auto 10px auto auto';\n\n div1.append(logo);\n\n function addToToolbar() {\n var toolbar = $('.md-toolbar-tools');\n \n if(!toolbar.length) return;\n \n toolbar.append(div1);\n }\n addToToolbar();\n });\n</script>","storeOutMessages":true,"fwdInMessages":true,"resendOnRefresh":true,"templateScope":"local","x":710,"y":60,"wires":[[]]},{"id":"a07824d3.1fe8b8","type":"ui_group","name":"Sensor","tab":"5d86edbf.ced464","order":2,"disp":true,"width":"6","collapse":false},{"id":"5d86edbf.ced464","type":"ui_tab","name":"Übersicht","icon":"dashboard","order":1}]