Gui class defines for elem buttons [[
| expcore.gui.core |
| expcore.gui.prototype |
| utils.game |
| ElemButton.new_elem_button([name]) | Creates a new elem button element define |
| ElemButton._prototype:set_default(value) | Sets the default value for the elem button, this may be a function or a string |
| ElemButton._prototype.set_type | Sets the type of the elem button, the type is required so this must be called at least once |