Original source by dataarts @ GitHub
https://github.com/dataarts/dat.gui

Forked by MacroMan @ GitHub
https://github.com/MacroMan/dat.gui


Modified by MadHero @ GreasyFork.
https://greasyfork.org/users/168
- Prioritize GM_getValue/GM_setValue over localStorage
- New constructor param/property "useLocalStorage", param overriden by stored value, default "false"
- New constructor param/property "storageHashPrefix", default "document.location.href + '.'"
- New constructor param/property "autoSaveIfPossible", saves on tab exit, default "true"
- New "GUI.hide_key_code", sets keyCode for hiding GUIs, default "72" (h)
- Prioritize Shadow DOM container, prevents CSS conflicts
- Expand GUI._keydownHandler filtering of writtable elements.

Initial userscript release, bug reports would be appreciated.