Green
• I'm available to chat! You can chat me freely whenever it's green :)
• I might be afk, not responding or busy. But, I'll try to respond!

Yellow
• I'm either at work, or busy.
• I get off work at random times. Even before 14:00.
• Overtime is another thing, but ehh. I take it randomly.

Blue
• I'm sleepy...
• Sometimes I'd stay up late just for fun.

White
• Probably doing something else.
• I don't know. This just serves as a fallback.