A world sheet is the collection of all the mechanical bits of a World that are necessary to Create A Character. In the same way that a character has a character sheet, a world has a world sheet. This is so it can easily be presented to and referenced by players.
About Pane
Name: The name of your world
Description: A short description of your world
Touchstones: Real life media, places, events, time-periods, etc. that are similar to this world.