https://m.stacker.news/18320 It should look like this, but for some reason the spaces at the beginning of each row are removed in markdown.

The representation is about:

• the strong relation between BTC (onchain) and LN (offchain). They can't evolve without each others. They must run together.
• as you said correctly it represent also the IN/OUT swaps from a LN channel and also opening and closing LN channels.