<tab> tag attributes refer specifically to Hyperbolic view:
- spacing. Item spacing. Default is 0.35.
- aspect. Aspect ratio. Default value is 2.
- hyperbolicScale. Scale. Default value is 1.
- path. Optional highlighted (link type) path. Default is an empty string.
- focus. ID of note with current central focus.
- crosslinks. Optional cross-links filter. Default is 0 (off), 1 is on.
- spread. Spread factor. Default is 0.5.