Specify global tooltip scene in the project settings.

[theDapperRaven]

The basic tooltip for controls, while decent, is kind of bare. Godot has _make_custom_tooltip to solve this, which lets you make your own custom tooltip. This works great for most games, where all your card scenes have a plain Control to make the tooltip and all that rot, but for something like an app, where your button needs a tooltip, your slider needs a tooltip, and your tree needs a tooltip, it is very annoying to have to attach a script to every one of your control nodes just to implement _make_custom_tooltip individually for each of them.

I propose a global tooltip scene in the project settings, that lets you specify a scene to use for all tooltips.
If _make_custom_tooltip is not overwritten, godot will use this scene to create the tooltip.
The only restriction would be that the root node needs to have a property called "text" so the tooltip can actually be filled in you know. If your root doesn't have a "text" property, just add one in a script. Done!

I hope this isn't too selfish of a suggestion, (it might only benefit me) but I'm sure that at least one other individual would find this useful!