What is highstock.js - modules- canvas-tools?
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Just downloaded highstock 1.1.6.  The js directory includes a modules folder, which has a file named canvas-tools.js.  I have looked around both highstocks.com and highslide.com as well as searched their forums, but for the life of me I cannot find any documentation about what the module is or how to use it with highstock.js

Might anyone on here be able to shed some light on this most mysterious of javascript libraries?

Many thanks.