I have created a project file where these parts light up when your mouse hovers over them. If you want to use them for your game or something, you are 100% free to do so!
Here is a screenshot of how it will look like in game, you can edit it if you’d like.
Mouse-Hover-Part-Test.rbxl (30.0 KB)
Here is the open source project file for people who want to use it.
Enjoy!