How to customize CSS of the email template? 

Hi, 

Sorry for opening an issue but I did not find an answer to my question. 

Is it possible to adjust the email template sent from alerts.betterstack.com? It is designed to have a white background and I would like to see this change according to the system defaults, like

```
@media (prefers-color-scheme: dark) {
  /* dark mode styles */ 
}
```

Thanks.