Can we get a more comfy environment for the mangrove swamp?

   Hi! I just saw Minecraft Live and I'm just asking if the mangrove swamp biome could be it could be more swampy like everything is super wet and mushy. First, what about another slime variant? I was thinking of a mud slime creature similar to a normal slime but gives you the slowness effect and drops mud balls, which can craft well... mud. And how about a different sky color that would be more of a gray than blue?  We should also have a really foggy environment for when it rains. I feel that this would definitely improve the already amazing mangrove swamps and I hope that Mojang sees this.