Option for showing the tag names in color

[jlopezr]

No description provided.

[jamescat]

I love this feature! -- However, I wonder about its compatibility with various terminal types, and particularly output to scripts / pipes / files / etc.

I didn't see anything that's obviously checking for whether the output of the command is to a file or tty, or anything which would make the color output "smart" like it should be about not sending control characters into non-tty devices.

Also, just a nitpicky tidiness issue I noticed... it looks like most values are immediately following the preceding colons, but in L773, L791, L818, & L957 at least, your additions include a space after the colon. Simply for code consistency, it might be best to remove those.

[jdberry]

Thanks @jlopezr. I modified and merged this in 7aad1ed.