Added the invisible country-scope scripted modifiers "stu_can_build_non_unity_megastructures_flag" and "stu_can_build_unity_megastructures_flag". New megastructure techs can increase these above 0 to tell the AI to budget for megastructures without overwriting the "can_build_unity_megastructure" or "can_build_megastructure" scripted triggers. How much higher than zero it is should have no effect.

Added the invisible country-scope scripted modifiers "stu_deleterious_organic_modding_flag", which allows technologies to activate "can_add_negative_traits_organic" and "can_remove_positive_traits_organic" game rules without overwriting. How much higher than zero it is should have no effect.

Added "has_apocalypse", "has_megacorp_dlc", "has_arachnoids", "has_anniversary_portraits", and "has_creatures_of_the_void" triggers just so modders can stop needing to ask themselves "is this one of the DLCs with a scripted triggers or one of the ones without".

Added the "is_playable" and "is_empire" flags so to save mods overwriting the triggers of the same names.

Added "stu_harvested_leviathan_dna" country flag so modded leviathans can more easily enable the Leviathan Transgenesis technology.

Added the "stu_structure_can_teach_megaengineering" so megastructures can be made to increase Megaengineering chance without overwriting "has_any_megastructure_in_empire".

Added "stu_counts_as_civilization_for_comms" flag so civilizations can be made to count for the "has_comms_with_alien_civilization" without overwriting said trigger.

Made "has_no_non_gate_megastructure" count megastructures as non-gate by default rather than needing a list of all non-gate megastructures, also added a "stu_is_gate" so mods don't need to overwrite the trigger to make megastructures count as gates.

Added the "stu_is_special_colony_type" flag, so mods can disable normal Designations on a planet without overwriting "is_special_colony_type".

Added the "stu_precursor_intro" flag so new precursors don't need to overwrite "has_precursor_intro"

Added the "stu_situation_leviathan_biological" flag to save new leviathan situations from overwriting "is_situation_leviathan_biological"

Added the "stu_is_organic_controllable_ship" flag so new scrappable organic ships don't need to overwrite "is_organic_controllable_ship"

Added the "stu_has_special_star_flag" star flag to save mods from overwriting "has_special_star_flag_trigger"

Added the "stu_is_non_hostile_to_wraith" country flag to save mods from overwriting "is_non_hostile_to_wraith"

Added the "stu_fleet_cant_be_scrapped" and "stu_is_reanimated" ship and fleer flags to save mods from overwriting "fleet_can_be_scrapped" and "is_reanimated"

Added the "stu_bombardable_by_everyone" flag so mods can give new countries the bombardable-by-everyone qualities of the Prothoryn, Contingency, and Cybrex without overwriting "can_orbital_bombard"

Added the "stu_can_bombard_everyone" flag so mods can give countries the can-bombard-anyone quality of the Marauders Gray Goo, and so on without overwriting "can_orbital_bombard"

Added the "stu_ai_restrict_system@root" flag so people can tell a specific AI country to avoid a specific system.

Added the "stu_force_advanced_empire" and "stu_cannot_be_advanced_empire" so mods can make an empire advanced or not advanced without overwriting "must_be_advanced_empire" or "is_allowed_to_be_advanced_empire"

Added the "is_endgame_crisis" trigger so mods can more easily give new crises various properties shared by the Unbidden, the Prethoryn, and Contingency but not by the Great Khan.

Added the "is_shielded" trigger so mods can make planet classes count as shielded for the purpose of planet-killers without overwriting most of the "can_destroy_planet_with_<component>" triggers.

Added the "homicidal_diplomacy_restrictions" trigger so mods that add new sorts of homicidal empire don't need to overwrite most diplomatic actions.

Added the "damage_vs_crisis_mult" static modifier so new crises don't need to overwrite each source of bonus damage-vs-crises.