here is a simple example
[{"id":"c140681b.2b13c8","type":"ui_table","z":"846d7832.3348c8","group":"13b35473.20565c","name":"","order":0,"width":0,"height":0,"columns":[{"field":"title","title":"","width":"","align":"left","formatter":"plaintext","formatterParams":{"target":"_blank"}},{"field":"test","title":"","width":"","align":"left","formatter":"color","formatterParams":{"target":"_blank"}},{"field":"rest","title":"","width":"","align":"left","formatter":"plaintext","formatterParams":{"target":"_blank"}}],"outputs":0,"cts":false,"x":550,"y":620,"wires":[]},{"id":"f1da76c5.b75a78","type":"inject","z":"846d7832.3348c8","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"#ff0000","payloadType":"str","x":170,"y":600,"wires":[["6ebd4255.17ac3c"]]},{"id":"f1ae029d.a9fbf","type":"inject","z":"846d7832.3348c8","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"#00ff00","payloadType":"str","x":170,"y":640,"wires":[["6ebd4255.17ac3c"]]},{"id":"4e359597.2a49ac","type":"inject","z":"846d7832.3348c8","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"#0000ff","payloadType":"str","x":170,"y":680,"wires":[["6ebd4255.17ac3c"]]},{"id":"6ebd4255.17ac3c","type":"function","z":"846d7832.3348c8","name":"","func":"msg.payload = [ {title:\"Row1\", test:msg.payload, rest:\"More words\"} ]\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":390,"y":620,"wires":[["c140681b.2b13c8"]]},{"id":"13b35473.20565c","type":"ui_group","z":"","name":"Default","tab":"ced4b0d9.bad33","order":1,"disp":true,"width":"6","collapse":false},{"id":"ced4b0d9.bad33","type":"ui_tab","z":"","name":"Home","icon":"dashboard","disabled":false,"hidden":false}]
looks like
and gives
where the colour changes to match the data button injected.
As the node info text says
the data needs to be the html colour name or the #rrggbb hex colour value
