Red chat close seal
the seal () used to close the chat window is too striking. There are alternatives:
Early Middle Ages, only the highest officials used seals. Later, this was taken over by lower 'ranking' officials, such as knights, and even later even the common people used seals. These most official documents look like:
These seals were often made from lead, more common, or gold, very rare and only used by emperors. Then the icon should be of a silverish color with a blue hue or shiny goldish.
During the Middle Ages, as more people started using seals, a need for a cheaper material was needed: this was beeswax. This wax is originally not colored, but later used cinnabar (vermilion) which is the same color red as the current close icon.
Also note that in that time, most documents were signed by sealing a rope hanging from the paper, like seen in all pictures here.
So these are some concepts I've Photoshopped (top, left = original):
I don't like the huge white cross in the left-most top-most, and my favorites are in the 2nd, 3rd and 4th columns. What do you say?