Using the Glyph Overview
In the Glyph Overview window all cells have a caption and a part that shows the glyph.
To distinguish the types of glyphs the captions have different colors:
A special border around the colored dot (see the red dot at the 'x') indicates that the glyph itself is not directly available (there is no mapping information) in the font file. Empty glyphs (the 'y' and the 'braceleft') will show a sample character based on the first valid Windows mapping.
Each cell has a caption that is used to display the postscript name, the mappings or the index of the glyphs. To select the kind of caption, select Options on the Tools menu and go to the Overview tab page or right-click in the Glyph Overview window and select a specific caption.