A few days ago I sperged out (
>>47884770) about Niantic not being completely clear on which raids are shiny unlocked and about how they don't communicate this information clearly IN-GAME.
Maybe they lurk here because this Twitter post is a step in the right direction, though it's still not IN-GAME.
People shouldn't have to fucking have social media accounts for this basic info, but at least they are using my shiny symbol suggestion.
Also, why the fuck are they posting this on the LAST day of the event? Jesus fucking Christ!