Pulldown menu for direct selection of a page with images.

Button for displaying next page.

Button for displaying previous page.

left-mouse or middle-mouse

• select colormap

right-mouse

• placement of colormap

left-mouse

• Zoom
  left-mouse = Zoom In [+1:-1]
  middle-mouse = Zoom Out [-1:+1]
  right-mouse = Zoom Close

middle-mouse

• Info
  Show internal IMG_DATA structure

right-mouse

• GBC
  Color correction (Gamma, Brightness, Contrast)

Button to hide/show the entries.

Spinbutton to select a page to view.

Spinbutton to select an external colortable to load from file of the form "ctXYZ.lut" where XYZ is the number supplied.

Button to hide the viewer window.

Button to select labels options.

Button to select rendering options.