The red dot beside the chat is the availability. It shows various types of moods of user. The red dot shows that the user is busy.
dont knw
Red=stop red flashing= light is broken, use your judgement in crossing.
Blinking red light signifies alertness or danger.
A red light district is the part of a city that has prostitutes.
The red light means the battery is low.
You can easily find the images of Gmail icon. You can google it to find the red colored image. It is an image of red package.
The red light that blinks after you lock the car is the 'alarm armed' light.
Assuming you mean visible light, that would be red light.
A red light means your DS is running low on battery, and needs recharging.
Red
front of light
stop or give way.