Ok this is a bit of a silly fine hair to split, but I noticed it and figured I'd mention the oddity since it's opt-in. In GovernorBonusDefs, the <Stats> blocks used elsewhere are called out with <Stat> instead.
<GovernorBonus>
<InternalName>WealthBonusGov3</InternalName>
<DisplayName>WealthGovernor3_Name</DisplayName>
<Icon>GC3_Wealth_Token_5.png</Icon>
<Slider>WealthSlider</Slider>
<SliderOffset>0.20</SliderOffset>
<Stat>
<EffectType>ColonyGrossIncome</EffectType>
<Target>
<TargetType>Colony</TargetType>
</Target>
<BonusType>Multiplier</BonusType>
<Value>0.20</Value>
</Stat>
<Prerequ>
<Techs>
<Option>InterstellarDemocracyTech</Option>
</Techs>
</Prerequ>
</GovernorBonus>
