Enabling log causes no colour
With the following options specified in config.json, colours are working as normal:

`"colors": true,
"log-file": null,`

However, as soon as I specify a log file, like this:

`  "colors": true,
    "log-file": "xmrig.log",`

Then colors no longer work. Everything is just white text on black background.

I'd like to have both colors and a log file!

Using version 2.4.2 on Windows 10.