Features from i3 4.22

[emersion]

See https://i3wm.org/downloads/RELEASE-NOTES-4.22.txt

• i3bar: bar { padding } config directive now implemented (supports bar { height } from i3-gaps)
• i3-dmenu-desktop: allow more than one --entry-type with the --show-duplicates flag
• You can now enable gaps using the gaps config directive and/or command
• colors now support an optional alpha value at the end (#rrggbbaa)
• the hide_edge_borders option now supports the smart_no_gaps keyword
• Support nonprimary keyword for outputs
• add "mode" field in binding event

[SebTM]

i3bar: bar { padding } config directive now implemented (supports bar { height } from i3-gaps)

So is there the goal to migrate to the same format with up to four values like i3bar did in the merge?