Chapter 5
Image processing menus
This chapter is runs quickly through the Toolkits menu. See
Chapter 6 if you want to understand how the menus are
written (or want to add more of your own). Use the Toolkit
Browser to find stuff.
  Some things are common to almost all menu items:
    
- 
Tooltips 
- If you rest your mouse pointer over an item,
    you’ll  see  a  quick  description  of  what  the  item
    does.
    
- 
Grouping 
- You  can  select  several  objects,  click  Edit  /
    Group,  and  then  when  you  click  the  item,  it  will
    operate on all the objects in the group.
    
- 
Any type 
- Almost  all  items  will  work  on  any  object.
    You can add an image and a number, for example,
    find the colour difference between a number and an
    image, or transform a matrix from LAB to XYZ.