Nether bedrock
is a new dark texture that is rough and craggy
End bedrock
is changed on the End crystal's base
Nether bedrock
looks more natural on the roof of the nether
End bedrock
pulses with same energy that beams out of gateways
Overworld bedrock
blends in more with Deepslate
End Bedrock
looks like an ancient block with magical properties that power the portal