This is a paid asset, but now you can download GUI Kit Pro – Hepul Kit for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
GUI Kit Pro – Hepul Kit v1.0
GUI Kit PRO – Hepul Kit is a Complete UI asset to make your own games.
1500+ sources as PNG
180+ pictogram icons (32×32, 64×64, 128×128, 256×256, 512×512) with white and black variations
100+ unique item icons
+100 buttons with 10 different styles and colors
04 different panel styles with multiple colors and landscape, portrait and popup styles
04 different header styles with +10 different colors. (Headers, Title Headers, title Ribbons …)
+100 frames to suit all your design needs.
Progress Bars with different styles and colors.
Sliders and Toggles in different styles and colors.
Dropdowns in multiple styles and color variations.
Multiple status bar choices.
Premade Prefabs.
and Many Many More.
If there any suggestions or ideas for improvement feel free to contact me, if it is possible I will add your request in further updates.
All files are vector based.