Modifier
No Winter Severity
winter_none_modifier
No Winter Severity (modifier ID winter_none_modifier) is a named modifier in Crusader Kings III. No add_…_modifier command in common/, events/ or history/ adds it. Patch 1.20.1.2, from game/common/modifiers/00_province_modifiers.txt.
Effects
No modifier lines of its own. The script checks for it 0 times (has_…_modifier).
Where the game adds it
No add_…_modifier command in common/, events/ or history/ adds it.
Source: game/common/modifiers/00_province_modifiers.txt (line 138), the English localisation (winter_none_modifier, winter_none_modifier_desc) and every add_…_modifier / remove_…_modifier in common/, events/ and history/, Crusader Kings III 1.20.1.2.