The bug
As you can see it's a deep dark blue to the sides and on top from looking at water sides from air the color is much lighter compared to the glass it doesn't match the biome it's given. Another way to do this is to go to a swamp and look into it it will appear to be dark blue rather then brown.
Yes this is unintended since the snapshot was suppose to have water colorized per biome if you look water side through air it won't match this.
Linked issues
is duplicated by 7
relates to 1
Attachments
Comments 15
Relates to MC-128253
Bedrock Edition fixes this (MCPE-11140) by rendering the water's top texture on any face next to glass, as opposed to rendering a solid colour like how Java handles this.
Relates to MC-129794
Affects 18w16a as well.