The Undiscoverable/Squeak/Halo

Object Halos
Right-clicking on any object in Squeak or Etoys brings up a halo of tool icons, as in this image. Etoys provides an interactive tutorial on Halo tools in the form of a game called the Demon Castle.



Starting at the top left and proceeding counterclockwise, the icons for a Workspace window are


 * X, Remove from screen


 * O, Collapse


 * Eye, Open a viewer for me.


 * Rectangle, Make a tile representing this object


 * Whirly square, Rotate


 * Title


 * Box and partial frame, Change size


 * Eye dropper, Change color


 * Wrench, Debug


 * Two rectangles, Duplicate


 * Square with corners, Move


 * Square with tongs, Pick up


 * Menu, as shown below

Most of these are reasonably discoverable. The object viewer requires further explanation.

Different kinds of object may have a different selection of tools in the halo. For example, the halo on a text object includes tools for selecting fonts and applying styles to portions of the text.