For more detail this asset from the Unity Asset Store: Click Here
This is a paid asset, but now you can download UI Pack: Toony PRO for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
UI Pack Toony PRO v1.1.5
“If possible, please buy the package to support the developer”
This package contains 300+ textures, 80 prefabs of cartoon style UIs, 26 sample scripts and 20 live demo scenes, etc.
UI Animations in this package are powered by GUI Animator for Unity UI. It is included and regularly updated with this package.
Web Demo | LITE version
Features:
• 80+ UI prefabs.
• 300+ psd files.
• 20 demo scenes for Landscape and Portrait orientations.
• 26 sample C# scripts.
• 15 Particle that compatible with Unity UI Canvas.
• 39 sounds.
• Supports all build player platforms.
• GUI Animator for Unity UI is included.
Compatible:
• Unity 5.5.1 or higher.
Note:
• Learn how to create sprite atlas for Unity UI, see tutorial on Youtube or Unity Doc.