When using a tutorial to clear Launchpad of its mess I had in /Applications, I accidentally cleared Dashboard's list of widgets when I click the (+) button to add downloaded widgets at the same time, kind of like Launchpad's viewing of apps.
Here is my Dashboard:
And here it is when I click the (+) button to add downloaded widgets in the bottom left corner of Dashboard:
I believe it will only show new widgets I download. How can I get it to show all of my widgets again—including the default, built-in widgets?
(This is my Launchpad: it looks similar to the "add widgets" of Dashboard.app in Mountain Lion, but I am looking how to restore my list of widgets in Dashboard, not Launchpad.)
Also, it probably doesn't make a large difference, but my Dashboard is set as a Space and not an overlay right now.