ACAT – All Creatures Are Traitors – an April Fool's mod from 2022.

one more question, how to remove any rune from the dwarves in the game and how to give creatures a certain percentage of magic resistance, for example I want to give demons 20% fire protection as per lore 

well, this is where things get tricky - resistances work as abilities, so there are only these:

        <Item>ABILITY_FIRE_PROOF_50</Item>
        <Item>ABILITY_MAGIC_PROOF_25</Item>
        <Item>ABILITY_MAGIC_PROOF_50</Item>
        <Item>ABILITY_MAGIC_PROOF_75</Item>
and with runes it's easier
all runes are located in \GameMechanics\Spell\Combat_Spells\RunicMagic

you can switch runes to an inactive school of magic by rewriting <MagicSchool>MAGIC_SCHOOL_RUNIC</MagicSchool> to <MagicSchool>MAGIC_SCHOOL_SPECIAL</MagicSchool>