### Prerequisites - [x] I have written a descriptive issue title - [x] I have verified that I am running the latest version of ImageSharp - [x] I have verified if the problem exist in both `DEBUG` and `RELEASE` mode - [x] I have searched [open](https://github.com/SixLabors/ImageSharp/issues) and [closed](https://github.com/SixLabors/ImageSharp/issues?q=is%3Aissue+is%3Aclosed) issues to ensure it has not already been reported ### ImageSharp version 3.1.11 ### Other ImageSharp packages and versions none ### Environment (Operating system, version and so on) Linux Ubuntu 24.04 ### .NET Framework version net9.0 ### Description Hello, We found an image that is losing transparency after resizing it. After digging more into it the only "special" things seems to be there is a png:tRNS chunk on it. ### Steps to Reproduce I cannot share this image, so I tried to recreate the image with the same properties, the problem seems to be the there with the test image, but I'm not an expert about this. (to be transparent, I used Claude to generate this image: https://claude.ai/public/artifacts/8c3ecd97-14dc-4f37-852e-3cdaea076671) ## Source image: (`2x2` pixels, displayed at `64x64`) <img width="64" height="64" alt="Image" src="https://github.com/user-attachments/assets/6b59c897-ff84-4d14-b53b-6aa6f7a9cb32" /> ## Result after resize to `4x4` ### ImageSharp When using ImageSharp with the following piece of code, the result does not have any transparency ```cs using var a = Image.Load("test_trns.png"); using var b = a.Clone(x => x.Resize(4, 4)); b.Save("test.imagesharp.png"); ``` <img width="128" height="128" alt="Image" src="https://github.com/user-attachments/assets/38308527-e15a-4eaf-bdc2-eb0e812ec953" /> ### ImageMagick When using image magick `convert test_trns_fixed.png -resize 4x4 test.imagemagick.png` it's works as expected <img width="128" height="128" alt="Image" src="https://github.com/user-attachments/assets/55d89e1d-be35-4757-b5ad-eaf0d2eca3bb" /> ### Images _No response_