Multiple envelope images:gray = no messages;thin-lined red = 1-4 messages;thick-lined red = 5-9 messages;very-thick-lined red = 10-19 messages;almost a filled red rectangle = more than 20 messages.
Multiple envelope images:
gray = no messages;
thin-lined red = 1-4 messages;
thick-lined red = 5-9 messages;
very-thick-lined red = 10-19 messages;
almost a filled red rectangle = more than 20 messages.