Flex

How a Layout distributes any space its segments do not consume (ratatui's Flex).

Flex only has an effect when the constraints leave leftover space — i.e. there is no Fill/Min greedily absorbing it. With such a growing constraint present the leftover is zero and every mode behaves like Flex.Start.

• Start — pack segments at the start; leftover trails at the end (the default).
• End — pack at the end; leftover leads at the start.
• Center — center the block; leftover splits evenly before and after.
• SpaceBetween — first and last segments touch the edges; leftover splits between segments.
• SpaceAround — equal space around each segment (edges get a half-gap).
• SpaceEvenly — equal space in every gap including both edges.