As stitch types and colours (yarns) are selected from the palette and used in a chart, relevant entries are automatically added to the key in the Chart Diagram. Hence, the default colour (yarn) and stitch type that are used to create the initial chart are added to the key when a new chart is created. In addition, entries for Borders are added to the key as these are created.
The key is highly customisable. The labels of individual key entries is automatically generated using templates that can be edited by the user (see Editing a user Text Templates stylesheet for more information about editing the key entry templates). After the labels have been generated by Stitchmastery, they can be further edited by the user. Key entries can also be reordered, deleted (if possible) or hidden (when it is not possible to delete).