However there's something that has been bothering me about them lately... Maybe we didn't notice it before because we had no use for wine and all that, but now that vinegar, wine and beer productions are full steam ahead, this has become a more annoying problem. It's not a big deal - it's just annoying.
It is very hard to see if there is something inside the demijohn. And if there is, you can't tell what it is. Maybe the green glass texture is too strong or maybe there's no color at all in the contents, etc... I don't know - thing is: it's annoying to have to click all of them to be sure you're not missing anything.
And it gets worse when it's night and they are outside. I know that it is arguably easier to see with Night Vision (from custom clients) on - but I suppose features/development shouldn't be made thinking like "well, people will be able to see with night vision on"

Anyway, this is how they look right now. Some of them are filled, some are not.

And here I made a little edit showing how they could look like when filled. Not only easier to see, but also able to tell what is inside. I've made grapejuice, wine and vinegar (just as examples) but, of course, this is just an idea. If not possible to know what it is, at least being able to instantly tell IF there is anything at all would be awesome already!

Anyway, just my opinion on the matter...
Also, it would look much better!
