Is it possible to use the tmux height instead of the vim height?

Hi, love the plugiN!

If I have my tmux split vertically I get full height when I go into distraction free mode,
but if my Vim is run in a horizontal split, the height becomes relative to that pane (even though Goyo + tmux zoom lets me fullscreen it). Is it possible to use the tmux height instead of the vim height?

Start by reproducing the layout with Vim running in a horizontal tmux split, then enter Goyo distraction-free mode and compare the resulting height with the tmux pane height. Inspect the Goyo layout-sizing entry points and any tmux-related handling; done means the mode can use the tmux height in this setup without breaking the existing vertical-split behavior.

Written by the indexing model from the issue text.