Allow players to set their default color
Allow players to set on their profiles their default color. An addition to this would be to let players rate the colors in case they join a room/game where their configured colors are already taken.
When a player enters/creates a game lobby:
* if the player's #1 ranked color is not yet taken, that will be the player's default color.
* if the player's #1 ranked color is already taken, then the player's #2 ranked color will be the player's default color. (and so on until the player is assigned a color from its configured color rankings)
* if the other player who has the #1 ranked color leaves the game or selects a different color, the player's color will automatically change to the #1 ranked color.