I'll let @vultraz pretty it up a little if he wants.
Note that old saves won't show this info; it'll only show up in new saves.
It might show up for old saves if you clear your cache, though.
This was a dialog used early in 1.13 during the SP/MP codepath unification to configure certain options.
The modification selection is now built into the Selection dialog, and we decided not to enable other options
like Era selection in SP. The only option we might look to restoring in the future is the "show_connect"
option, but that requires some additional code elsewhere and probably won't be used anyway.
In addition to an interface update, this also makes the dialog work better with the editor, with improvements
such as restoring the currently selected ToD when the dialog exits (until we implement the saving of changes
made within the dialog) and opening to the same.
The menu_button is now only a drop-down menu that supports a single selection.
A new multimenu_button widget supports a drop-down menu with multiple selections.
The new multimenu_button widget displays its current selection while not open.
although stacked_widget supports similar functionality this is currently
not easily doable from the lua gui2 api. In particular
1) stacked_widget cannot add pages dynamically
2) multi_page can only contain one type of widget.
3) a stacked_widget inside a multi_page is ineffective since it
generates many unused widgets
4) a multi_page inside a stacked_widget is just unhandy to use
I was performing a value check on fade_step in the timer, and then multiplying it fivefold in the alpha
calculation, meaning full alpha was reached long before the fade in sequence stopped and the duration timer
was initialized.
For rectangles, color_t::null_color() needs to be specified as the default since typed_formula
utilizes the default type ctor if no default value is provided. In this case, color_t's default
ctor returns opaque white, which doesn't mesh well with GUI2's drawing.
Other shapes don't get this default value, since color is essentially mandatory for them, whereas
in rectangles either fill_color or border_color may be omitted.
