Here is some code I used for a button. You can copy past this into a rich text formula. The first part of the code will allow you edit the size and the color of the button so you can make it literally any color. The second part of it edits the function of the button. In my case it redirects you to a new url. You will have to change the app token, FID, the [DBID_], and the url code.
//formatting visuals of button
var text bgcolor = "#34A853";
var text txtcolor = "white";
var text style = "style=\"text-decoration: none; background:" & $bgcolor & "; border-radius: 5px; padding: 8px 20px; color: " & $txtcolor & "; display: inline-block; font: normal 700 24px/1 \"Calibri\", sans-serif; text-align: center; text-shadow: none;";
//Inner workings of button
var text url =
URLRoot() & "db/" & [_DBID_RFP_REQUEST_FORM] & "?act=API_EditRecord&rid=" &[Record ID#]
& "&apptoken=uwi4fb9cj4szcdzjnfxd5xz3te"
& "&_fid_148=2"
& "&rdr=" & URLEncode("https://divisionsinc.quickbase.com/db//brpms6hce?a=dbpage&pageID=19");
"<a " & $style & " href=\"" & $url & "\">Approve</a>"
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Hank Halverson
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