Fixed bug with Arc furnace megastructure;

Added habitability cap effect for atmospheres different than the species' homeworld, which can lower the planet's maximum habitability from 90% down to 30% depending on how toxic the atmosphere is. This is meant to prevent even hostile marginal worlds from reaching high habitability with tech and other bonuses, but can still be avoided if you upgrade the Atmosphere (which requires the Extended sub-mod). Note that in worlds with multiple species, some may like the current atmosphere, others may not and may get different effects.

Fixed bug with Sulfuric class marginal world's portrait.

Updated to Stellaris 3.13;
Fixed issue of Earth loosing proper texture after loading a save;
Fixed issue of Ammonia Pelagic worlds getting converted to Water variants unintentionally.

Update to marginal worlds megaprojects, to make it easier to understand, conversion to habitable marginal world can only be done on Telluric worlds of specific classes, while conversion to sub-marginals can only be done on Sub-telluric and Magma worlds of specific classes. For this to work 100% a new game is required, but not that important if you don't care some of these worlds may have spawned as Telluric instead of Sub-telluric and vice versa which results in failure to build the megaproject.

Subterranean terraforming district build time adjusted (requires extended sub-mod, otherwise ignored).

Removed changes to asteroid field scaling for performance reasons;
Changed Survivor trait (used on Post-apocalyptic origin) to provide 25% habitability bonus in Marginal worlds (not just Tomb) instead of the bonus I had before. So now the beginning of the game should be a bit easier, but you will still feel the need to improve your nuked homeworld as soon as possible by researching Atmospheric Manipulation.
Note: the pre-sapiant irradiated trait now only provides habitability bonus on Tomb class worlds.

Changed planet icons to standard vanilla style, as I believe more people may prefer it this way. But do not ask me why a Retinalgenian looks green.

Sub-mod related update.

City world bug fixed, new game is not required.

Also included in this update are changes I've been working on as part of the upcoming sub-mod. You should notice at least the new Atmosphere modifiers:

All standard habitable worlds start with one of several optimal atmospheres (green ring), they dynamically affect habitability between 0 and negative 15% depending on your homeworld's atmosphere. Marginal worlds start with either a marginal atmosphere with a yellow ring that dynamically affects habitability between negative 15 and 20%, or a Sub-marginal atmosphere with a red ring which has a fixed negative habitability of 25%.

You will be able to change the atmospheres with the new sub-mod.

Fixed Ringworlds and other megastructures, this was actually already done but my changes were not overwriting vanilla. Rings and some others should no longer be allowed to be built around all types of binary and trinary systems, and the Arc furnace requires a magma world with the Molten class modifier;

Retinalgenian spawn chances moved back to red and orange stars as well as with the Dim Star alternate home system;
Photosgenian alternate homeworld moved back to the Bright star alternate home system.