Suggestion for "Working with images"

What exactly needs to made clearer in It exposes a setting for using the Image toolkit (Setting custom image quality)?

I think the term Image toolkit this should be made more clearer. In actual documentation "The Image module allows you to display and manipulate images on your website. It exposes a setting for using the Image toolkit, allows you to configure image styles that can be used for resizing or adjusting images on display, and provides an image field (using the Field API) for attaching images to content." It is not made clear what Image toolkit is used for- So I'm proposing on adding the image toolkit feature beside the text.

Actually, the form shown on /admin/config/media/image-toolkit is implemented by the System module, not the Image module. Select an image processing toolkit and GD2 image manipulation toolkit settings come from that module too.

Yes, So we can add a hyperlink to Image toolkit, as it will redirect the user to the Image toolkit page for better understanding of different features and documentation.
Furthermore I can help adding the hyperlink.

Added the hyperlink to the Image toolkit.