I want to add something like "&sharpen=50" possibility to images: https://docs.sixlabors.com/api/ImageSharp/SixLabors.ImageSharp.Processing.GaussianSharpenExtensions.html

I think you would need to implement your own WebProcessor that calls the sharpening extension they have some examples in the repo: https://github.com/SixLabors/ImageSharp.Web/blob/main/src/ImageSharp.Web/Processors/BackgroundColorWebProcessor.cs

Here's how I added '&tint='