I use the Editor for years already, especially the picture manager. Great plugin.
Recently I had a problem with thumbnail generation. The uploaded image is transformed to a thumbnail and gets far too much desaturated in this process. I work with product images, that have to be true to color (fabrics and wood colors). The outcoming thumbnail is kind ov weak and greyish. I will attach two images to see the difference.

I saw, that it is possible to increase saturation, but only image after image. Where would I have to change something to get a default higher saturation?