Interactions between duration, a target with t parameter, and timeMode

[triplingual]

Recipe Name

Manipulating Visibility and Behavior of Time-Based Resources

Use case

When presenting a time-based resource on a Canvas, you want to set the resource to end before the resource's inherent end, to play faster or slower to fit a particular length of time, or to loop during the Canvas's entire duration.

[triplingual]

This comes out of getting into the weeds of altering time-based media for #489 -- there are some fun/interesting ways that Canvas and resource duration can be used in conjunction with timeMode and the t parameter of a target -- trimming, scaling, looping. It's going to be a whole Happening.