To make a texture pack with Paint.NET, follow these steps: Download and install Paint.NET if you haven't already. Open Paint.NET and create a new file with the dimensions of the texture you want to create. Utilize the tools and features available in Paint.NET to create your desired texture. Save your file as a PNG or another compatible file format. Repeat the process to create additional textures for your pack. Once you have created all the textures you need, compile them into a folder and zip the folder to create your texture pack.