Yoko Oh Noes confuse about local v. global function names

Refer to https://www.khanacademy.org/computer-programming/global-v-local-confusion/6708041267363840 . Within a function, another function called "red" is declared. That function cannot be invoked because it does not have the correct number of arguments that correspond to the (global) Processing.js "red" function.

Start with the linked Khan Academy example and reproduce the local-versus-global `red` call in the browser-based live editor. Trace the function-name resolution entry point, then define a regression case for the intended local invocation while preserving the global Processing.js `red` behavior.

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