Add a transition

Steps

1. Write transition
2. Include the transition in the library bundle(s)
3. Include the transition in the Svelte docsite

Writing a transition

1. Sandbox for getting started https://codepen.io/argyleink/pen/RwamzKX
2. Look to see which shape type your transition fits into (circle, square, polygon or wipe)
3. Isolate the stateful custom properties you need
4. Create your 2 keyframe animations (in and out)
5. Have a nice working demo that can be toggled in and out

Checklist

1. ~2 custom properties with your clip paths in them
2. 2 keyframe animations using your custom properties

Integrate into the bundle(s)

Include in the Svelte site