When End Flashes appears, the lightning would becomes purple tinted, this is not the case on Bedrock Edition while using Fancy and Simple graphics mode, as the lightning wouldn't change and stays the same, which does not match Java Edition.
Steps to reproduce:
Change your graphics mode to either Fancy or Simple
Join any worlds, and then go to End
Wait until End Flashes appears
Observe
Expected results:
The lightning becomes purple tinted, matching Java Edition.
Observed results:
The lightning stays the same.
Thank you for helping us improve Minecraft! We saved your files: