Decker 1.52 offers some minor usability improvements and enhancements to custom brushes.

New Features:

• In Native Decker, the keyboard shortcut ctrl + U + L + D (read: Un-Lock-Deck) unlocks a locked deck, providing an escape-hatch if you accidentally lock a deck you haven't saved. (Shh: it's a secret to everyone!)
• Calling the random[] built-in function with no arguments will now return a random floating point number between 0 and 1; convenient for simple stochastic decision-making.
• Custom brushes previously interpreted any pattern other than 0 in a brush mask as essentially pattern 1, limiting brushes to paint only in the user-selected brush pattern. To make this feature more general, Decker now allows masks to contain any pattern indices: 47 (solid-color black) will be translated into pattern 1 in the final drawing, 1 will become the user-selected pattern, and any other nonzero pattern will remain the same; thus it is now possible to make brushes produce opaque "stamp" patterns, generate rainbow gradients, and much more.
• The brushes.deck example has been overhauled. In addition to all the existing example brush modules, several new exciting modules have been added and the deck now includes interactive documentation detailing the mechanisms behind custom brushes:

Go forth, my friends, and doodle upon your decks!

Elsewhere:

If you haven't seen it already, be advised that December is Dec(k)-Month ; please help spread the word, and consider using the jam as an excuse to make something fun with Decker and share it!