Put a little fat onto the caret

I have what I should call a "thing" for mouse pointer shapes... ( link 1, link 2, link 3 ) I simply like them to be just the exact way I like them to be.

Found a way to customize that on firefox too, specially, the caret text cursor. You know, the little vertical bar that indicates where the next letter will appear when you are typing something.

With this your caret will get fatter and easier to see on the screen (well, at least on Firefoix' screen).

Making the caret more visible

Currently looking for a similar solution to do so on the Gnome desktop, globally.