intellij-cloudflare-rules VS intellij-platform-plugin-template

I'm a beginner in plugin development and want to develop a simple plugin to access Redis in Intellij. I forked an official repository from JetBrains containing a basic template for plugin development. I can understand how to use the Service to call some business logic and share it between the plugin's components. But I really curious about how to build a simple UI using Kotlin DSL UI. Could you guys share some useful links or repositories describing the flow of creating elements/components for the plugin? The documentation from JetBrains is excellent but it doesn't contain any proper examples for creating UI elements.

The easiest way to create a new plugin is using the template. It is being actively developing and had already included most needed features.

Now we have a great template , which contains a useful todo list

I am using the plugin project template found here (https://github.com/JetBrains/intellij-platform-plugin-template)

I've cloned the JetBrains/intellij-platform-plugin-template plugin and gotten it to build correctly, but now I'm having trouble figuring out where to go next. Can someone help point me in the right direction?