condition inside winston format

Question

I want to create a html file using winston, where the text is colored according to information level (red for errors, blue for info, etc.) I wanted to add something like this: winston.format.printf( info => <div style="color: ${info.level} === error ? 'red' : 'green';">${info.timestamp} ${info.level}: ${info.message}<\div>, ),);

But of course it just prints the condition into the html like this:

2022-03-08T13:48:47.162Z info: this is info message 2022-03-08T13:48:47.164Z error: this is error message

so what I actually need is to plant the javascript condition into the html. Can this be done?