polyglot/palette: Canvas as a frontend for polyglot

Alyssa Rosenzweig 7cea452997 Move everything up one		7 年之前
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ActAsMask.js	7cea452997 Move everything up one	7 年之前
ActAsModal.js	7cea452997 Move everything up one	7 年之前
ActAsPanda.js	7cea452997 Move everything up one	7 年之前