- Future-proofing Planetary Habitats support.

Update:
- Arcology Decisions have been rewritten. There are only two now: Arcology Designer and Arcology Project. Use Designer to pick a district for Habitat Arcology or design Grand Arcology with 4 districts of your choice.
- Arcology Project decision has a detailed tooltip with requirements listed.
- Above decisions are always available for requirements overview as long as you have Children of the Void civic.
- Arcology Project will no longer require filling habitat with specific district types. You can use any type, in any configuration to fill it.
- Upgrade from Habitat Arcology to Grand Arcology possible.
- Fully save compatible.
- Full support for Planetary Diversity - Planetary Habitats. Please note that terraforming destroys arcology and all districts.
- If you are using Planetary Habitats or any mod which adds districs to Orbital Habitats I recommend installing an UI mod which allows to view more than 4 districts on a planet. I use UI Overhaul Dynamic.

Update:
Added support for The Zenith of Fallen Empires. Children of the Void civic is now available for following empire types: default, ascended_empire, lost_empire and ascended_hive_mind (last one for backwards compatibility).

- Tooltips, fixed exploit.

- Farming Arcology decision tooltip.

- Allow Farming Arcology project with habitation *and/or*farming districts on Planetary Habitats.

Update:
- Full support for Planetary Diversity - Planetary Habitats added (see screenshots[imgur.com]). Conversion to Arcology Habitats on the similar principles as for Orbital Habitats but mostly follow Planetary Habitat specialisation rules: Foundry Arcology Project requires Foundry dristricts present, Generator Arcology Project requires Generator districts present etc.
Projects require at least once upgraded (Advanced) Planetary Habitat.
Where no special districts are available build up with Habitation Districts. See Projects' tooltips for details.
Planetary Habitats receive Habitat Captain and Elysian Isles Ascension Perk bonuses as they were before.
Please note that terraforming into a normal planet destroys all districts and Habitat Arcology.

- Research Arcology Project now possible when Habitation *and/or* Science Disctricts are present. No Research Districts are granted after Project's completion. Please note that -100% pop demotion time from Habitat Captains still applies.

Modding notes:
- Planetary Habitats and their districts are not touched by Habitat Arcology projects. No planet_flags are removed. There are no file and block overwrites.
- Habitat Arcology projects now set_planet_flag = amaryllian_hab_arcology upon completion . A common planet_flag for all Habitat Arcologies in case any mods wants to detect them.

Update:
Energy Grid, Mineral Purification Plant, and their upgraded versions are now available on Habitat Generator and Habitat Mining Arcologies respectively.

Update:
Void Dwellers Expanded is now backwards compatible with Stellaris 2.6.* if you install Stellaris version checker. Should also work on 2.5.* but bureaucratic habitat arcologies introduced in 2.6 won't function.

Planetary Diversity - Planetary Habitats support.