I have a custom menu on a Google Sheets:
function onOpen() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var csvMenuEntries = [{name: "Save as CSV file", functionName: "saveAsCSV"}];
ss.addMenu("Save New Emails", csvMenuEntries);
}
I would like to style the menus I create.
Is this possible and how would one go about it?
All I really want to do is have a custom colour or background for the button to make it stand out.