Fix of previous update
Now you actually will get these legends seeds on Unite churches and Expand Gal-Vol Kingdom decisions

Added legends seed generation on decisions like in other major vanilla decisions

Some changes to expand de-jure lands of Galicia-Volhynia decision
1) Duchies of Chernigov and Pereyaslavl are now also becomes de-jure of Kingdom of Ruthenia, but they are still not required to be held for decision
Meanwhile duchies of Karachev and Novosil are transferred to kingdom of Vladymir
Kingdom of Kyiv left without any duchies and effectively destroyed

2) There is now an option to change de-jure capital of Kingdom of Ruthenia to Kyiv upon that decision

Update to 1.12

NEW UPDATE

Localization changes:
1) At 1066.9.15 start date volhynian culture changes it's name to ruthenian culture
2) Kingdom of Ruthenia is now Kingdom of Kyiv

Basicly volhynian, like other tribes ilmenian, severian, drevlian etc, are justified to exist in 867, but for the 200 years of relative unity it's no longer a separate tribe
Second change is made because of the first one
After decision to expand Galicia-Volhynia Kingdom it's name still will change to Kingdom of Ruthenia, not the new name Kingdom of Kyiv

Optimizations:
Made lots of script's changes to make that mod work better with Cultures Expanded mod
Which I highly recommend to use alongside
Just load this mod AFTER Cultures Expanded

Updated to 1.9

After Expand Galicia-Volhynia decision Kingdom of Galicia-Volhynia becomes Kingdom of Ruthenia

Icon update attempt #3