This update addresses a bug found with the legacies tree, where the bonuses for a legacy path stack after saving and loading the game. The bug is found in the base game as well, and I have submitted it to the tracker. Until it is fixed, I will temporarily reduce the length of the legacy trees. Additionally, minor adjustments to diplomacy, economy, and terrain types.

Diplomacy points per civilization rank:
- Bronze: 0.75 -> 1
- Silver: 1.0 -> 1.5
- Gold: 1.25 -> 2
Defensive pact score per defensive pact: 75 -> 25
Non aggression pact expires: 3475 -> 5475
Vassals can declare war default: No -> Yes
AE decay per tick: 1 -> 1.2

Max economy per growth rate: 0.75 -> 0.9
Invest cost legacy: 3 -> 5

Build cost: 1.5 -> 3
Population growth: -10 -> -25
Base economy: -20 -> -40

Build cost: 1.15 -> 1.5
Population growth: -3 -> -10
Base economy: -5 -> -10

Build cost: 1.15 -> 2
Population growth: -4 -> -10
Base economy: -7 -> -10

Build cost: 1.15 -> 1.5
Population growth: -2 -> -8
Base economy: -6 -> -10

Build cost: 1.2 -> 2
Population growth: -2 -> -10
Base economy: -7 -> -15

Build cost: 1.05 -> 1.25
Population growth: -1 -> -6
Base economy: -4 -> -8

Build cost: 1.05 -> 1.1
Population growth: 0 -> -4
Base economy: 0 -> -4

Build cost: 1.15 -> 2
Population growth: -4 -> -15
Base economy: -7 -> -15

Build cost: 1.15 -> 1.5
Population growth: -3 -> -10
Base economy: -8 -> -10

Build cost: 1.15 -> 2
Population growth: -4 -> -10
Base economy: -8 -> -12

Top civ ranks can colonize: 16 -> 20
AI prepare for war if AE below: 82.5 -> 52.5

ALL LEGACIES:
Max length -> 4
Legacy cost progression -> [300, 400, 500, 600]
(Until the legacies bug is fixed)