Deepflame's Chat Cards
This is a very simple module to alter the base chat cards.
It will color the header of the chat cards based on the player who added the chat entry's player color. This helps quickly identifying your rolls from others' rolls.
Players can change the colour of their chat card the same way they change their player colour elsewhere. The header font colour will try to be smart about selecting either black or white, depending on the brightness of the colour. Players may have to tweak their colour to better suit the cards however.