In contrast to the core set of Leader Traits, there is a set of 2023 Leader Traits that were added that have overly generic tooltip descriptions, resulting in them having undisclosed values during gameplay.
Rather this is a bug or by design, it makes for the opposite of fun-play. Should not make players dig through the bowels of the XML files just to figure out what a specific leader trait is doing.
In the absence of critical in-game trait description, players are unabled to make informed choices on their use.
For example, the in-game descriptions for the 'Melodically Challenged' (shown below) is -
"Their lack of musical prowess has been known to stir diplomatic tensions and unintended laughter."
This is just one example, but there are many of the "Post Release Batch" that are even more encryptic and less useable.
<!--Post Release Batch 1-->
<UnitTrait> <!--Polished 2023-->
<InternalName>LeaderTrait_DreadfulMelody</InternalName>
<DisplayName>LeaderTrait_DreadfulMelody_Name</DisplayName>
<Description>LeaderTrait_DreadfulMelody_Dec</Description>
<Icon>LeaderTrait_MelodicallyChallenged.png</Icon>
<Stats>
<EffectType>Social</EffectType>
<Scope>Local</Scope>
<Target>
<TargetType>Unit</TargetType>
</Target>
<BonusType>Flat</BonusType>
<Value>-2</Value>
</Stats>
<Stats>
<EffectType>DiplomaticTradeOfferValueMult</EffectType>
<Scope>Local</Scope>
<Target>
<TargetType>Unit</TargetType>
</Target>
<BonusType>Flat</BonusType>
<Value>0.9</Value> <!-- This means they get 10% less value in trade deals -->
</Stats>
<Stats>
<EffectType>Approval</EffectType>
<Scope>LocalColony</Scope>
<Target>
<TargetType>Unit</TargetType>
</Target>
<BonusType>Flat</BonusType>
<Value>-0.05</Value>
</Stats>
<Triggers>
<OnEvent>OnRecruitLeader</OnEvent>
<Target>
<TargetType>Unit</TargetType>
</Target>
<PerformAction>
<Action>SetFlag</Action>
<StringParam>Flag_Quest_Musical</StringParam>
</PerformAction>
</Triggers>
</UnitTrait>
