The planet entries in PlanetDefs.xml, I just put thesefollowing the "Artemis" entry
<Planet>
<InternalName>PlanetPoseidon</InternalName>
<DisplayName>PLANET_Poseidon_NAME</DisplayName>
<PlanetType>Dead</PlanetType>
<PlanetClass>0</PlanetClass>
<ArtDefine>NeptuneArt</ArtDefine>
<PlanetClassDistribution>
<Minerals>0</Minerals>
<Technology>0</Technology>
<Wealth>0</Wealth>
<Fertility>0</Fertility>
<PlanetInfluence>0</PlanetInfluence>
</PlanetClassDistribution>
</Planet>
<Planet>
<InternalName>PlanetApollo</InternalName>
<DisplayName>PLANET_APOLLO_NAME</DisplayName>
<PlanetType>Dead</PlanetType>
<PlanetClass>0</PlanetClass>
<ArtDefine>UranusArt</ArtDefine>
<PlanetClassDistribution>
<Minerals>0</Minerals>
<Technology>0</Technology>
<Wealth>0</Wealth>
<Fertility>0</Fertility>
<PlanetInfluence>0</PlanetInfluence>
</PlanetClassDistribution>
</Planet>
<Planet>
<InternalName>PlanetAphrodite</InternalName>
<DisplayName>PLANET_APHRODITE_NAME</DisplayName>
<PlanetType>Habitable</PlanetType>
<PlanetClass>18</PlanetClass>
<PlanetTrait>JungleWorld</PlanetTrait>
<ArtDefine>VenusArt</ArtDefine>
<PlanetClassDistribution>
<Minerals>5</Minerals>
<Technology>2</Technology>
<Wealth>2</Wealth>
<Fertility>9</Fertility>
<PlanetInfluence>9</PlanetInfluence>
</PlanetClassDistribution>
</Planet>
<Planet>
<InternalName>PlanetHades</InternalName>
<DisplayName>HADES_NAME</DisplayName>
<PlanetType>Dead</PlanetType>
<PlanetClass>0</PlanetClass>
<ArtDefine>MercuryArt</ArtDefine>
<PlanetClassDistribution>
<Minerals>0</Minerals>
<Technology>0</Technology>
<Wealth>0</Wealth>
<Fertility>0</Fertility>
<PlanetInfluence>0</PlanetInfluence>
</PlanetClassDistribution>
</Planet>
<Planet>
<InternalName>PlanetAres</InternalName>
<DisplayName>AresName</DisplayName>
<PlanetType>Habitable</PlanetType>
<PlanetClass>18</PlanetClass>
<PlanetTrait>TerrestrialWorld</PlanetTrait>
<ColonizationEventOverride>Event_ColonizeMars</ColonizationEventOverride>
<ArtDefine>MarsArt</ArtDefine>
<PlanetClassDistribution>
<Minerals>4</Minerals>
<Technology>9</Technology>
<Wealth>2</Wealth>
<Fertility>9</Fertility>
<PlanetInfluence>9</PlanetInfluence>
</PlanetClassDistribution>
</Planet>
<Planet>
<InternalName>PlanetZeus</InternalName>
<DisplayName>ZeusName</DisplayName>
<PlanetType>GasGiant</PlanetType>
<PlanetClass>0</PlanetClass>
<ArtDefine>JupiterArt</ArtDefine>
<PlanetClassDistribution>
<Minerals>0</Minerals>
<Technology>0</Technology>
<Wealth>0</Wealth>
<Fertility>0</Fertility>
<PlanetInfluence>0</PlanetInfluence>
</PlanetClassDistribution>
</Planet>
<Planet>
<InternalName>PlanetDemeter</InternalName>
<DisplayName>DemeterName</DisplayName>
<PlanetType>GasGiant</PlanetType>
<PlanetClass>0</PlanetClass>
<ArtDefine>SaturnArt</ArtDefine>
<PlanetClassDistribution>
<Minerals>0</Minerals>
<Technology>0</Technology>
<Wealth>0</Wealth>
<Fertility>0</Fertility>
<PlanetInfluence>0</PlanetInfluence>
</PlanetClassDistribution>
</Planet>
<Planet>
<InternalName>PlanetDiana</InternalName>
<DisplayName>DianaName</DisplayName>
<PlanetType>Habitable</PlanetType>
<PlanetClass>20</PlanetClass>
<PlanetTrait>PrecursorTreasury</PlanetTrait>
<ColonizationEventOverride>Event_ColonizeArtemis</ColonizationEventOverride>
<ArtDefine>ArtemisArt</ArtDefine>
<PlanetClassDistribution>
<Minerals>3</Minerals>
<Technology>2</Technology>
<Wealth>9</Wealth>
<Fertility>9</Fertility>
<PlanetInfluence>9</PlanetInfluence>
</PlanetClassDistribution>
</Planet>