How to add style to the login page in 3.0?

For the manager, I can add a stylesheet using $modx->regClientStartupHTMLBlock in a plugin that fires OnManagerPageInit. But that system event doesn’t work for the login page. I tried a few other events, but my stylesheet doesn’t get included. Is there some way to do this?

Is this the same issue you raised before?

Yes, totally forgot that I had posted that before!