This is the WildBit Viewer - Editor window where you can add an image file and edit it by using basic image editing intruments like selection and fill tools 

In the Options window you can set options about the Selection or Zoom Properties and also General options. You may set here the Grip and Rubberband sizes and colors 

Here you can see the Effects preview window that allows you to see a quick preview of the effects that you can apply to the image like: Contrast, HSV, HSL, Equalization, Gamma Correction or Sharpening 

In the Image menu you can see the list of Adjustments that you can apply to the image and you can also access from here the Historigram, or the Rotate and Resize tools 

Here you can see the WildBit Viewer - Slideshow window that allows you to create a slideshow by customizing the Transition, Image Change, Image Layout and Desktop mode settings 

Right clicking an image from the slideshow allows you to set it as wallpaper or to edit and rotate it. You can also start or stop the slideshow from this context menu 

The main WildBit Viewer displays a typical image viewer interface that allows you to browse through your folders and select images that you want to view. 

The Options window displays a series of Thumbview Options but also options related to Startup and General, Full screen and Visual modes 

You can also select to be displayed a thumbnail viewing of your folder's content as you can see in this window