I am implementing the custom progress bar as a health bar of player's character. That health bar shows the damage amount applied to the player's character and it decreases gradually.
Used version of Unreal Engine in this video is 5.1.1.
[Chapters]
00:00 Introduction
01:25 Image file used for the custom progress bar
02:03 Import an image file into UE project
02:35 Creating a Material
15:41 Creating a Material Instance
18:26 Adjusting a Widget Blueprint
33:27 1st Test Play
33:48 Bug Fix for the case the damage amount is not decreased
34:25 2nd Test Play
36:23 Bug Fix for the case the health bar is not fully filled
38:14 3rd Test Play (Completed One)
41:35 Final Test Play with changing the damage amount