Soft launch - Colloquy customization

It's been a good long time, but I will be ramping up the activity here shortly as I work on IMP (Migrate in Drupal 8 core). I'm spending more time in #drupal-contribute and decided to finally go back to Colloquy as my client. The first thing I wanted was to shut up the enter room/leave room/change nick messages, but it's not something customizable through the UI - didn't take long to find it in the FAQ, a little CSS goes a long way.

The next thing was to make the scrollback mark more prominent. It took a little digging, but I found the foundational CSS for Colloquy at Colloquy.app/Contents/Resources/default.css. Here's what I added to My Variant.css to get a mark I couldn't miss:

hr#mark {
	width: 95%;
        height: 2px;
	border-color: #ff0000;
        background: #ff0000;
}