Greetings!  The names of players are marked in different colours. I read that Grey means "not active for 7 days".
1. What the other colours mean?
2. Around some names there is thick line - what does it mean?

green is a player weaker than you (can't attack them)
purple is an outlaw (possibly a player who attacked someone stronger than them losing the green protection)
red is a player stronger than you
grey is offline for 7+ days
no color is someone of equal strength
the bold line is someone who has gone into "Vacation Mode" (can't be attacked)

i have only green pink and red