A store that is based on Svelte's tweened store, with some additional functionality:
pause(): freeze the store at the current value.reset(): resets the store's value back to the last set point.continue(): play on from a paused state.reverse(): play in reverse.replay(): go back to start, and play to last set point.accelerate(speed): adjust the speed of the animation.
Functionality inherited from writable():
set(value): works the same as awritablestore.update(callback): works the same as awritablestore.subscribe(callback): works the same as awritablestore.
MIT