Default i3 config (super as default modifier).
i3: use gnome terminal (colours set right and can resize font from keyboard easily).
i3: movement keys go left to match vim.
i3: switch vertical/horizontal to match vim.
i3: change focus child binding to something non-conflicting, but don't activate it, cos you can just move to break out of a parent focus.
i3: left alt is a better default mod (left hand is less packed into corner).
i3: vim directions for resize mode too.