Awesome

Marp Theme: Wave

Installation

Open your VS Code settings (Strg + ,)
Search for "Marp Themes" and click "add element"
Add this link: https://raw.githubusercontent.com/JuliusWiedemann/MarpThemeWave/main/source/wave.css

Now you can use "wave" as a normal marp template:

---
marp: true
theme: wave
paginate: true
transition: fade 0.3s
---

You can also add this to you settings.json file:

{
    "markdown.marp.themes": 
    [
      "https://raw.githubusercontent.com/JuliusWiedemann/MarpThemeWave/main/source/wave.css"
    ]
}

Sources