I wish the recipe book it was just a guide, only telling you what you need to craft something, instead of also allowing you to craft that item. It seems like people would just get lazy, ignoring the recipes and just craft the items without memorizing them. Or maybe not, I don't know.
A lot of these changes are LONG overdue, especially fixing the awful wool colors that Notch picked. Better late than never though. I hope they add stairs and slabs for all the new blocks too, and for the old ones that don't have stairs and slabs.
The Mojang team is running out of block ids, but they're working on a fix for that now.
I absolutely agree with the 2nd point. Honestly just making it so we get blue dye from the swamp orchids would be nice on it's own.
White flowers (like oxeye daisies) don't give you bone meal, they give you light-gray dye - despite being white - because bone meal comes from bones, not flowers. I think this would work the same way with lapis lazuli, unless mojang gives us a seperate item in a future snapshot to replace lapis's function as blue dye, or it would be a bit odd.
(Also, perhaps, if this becomes a hot topic, maybe this could get it's own thread?)
I guess the part that bothers me, really, isn't the brightness of the new colours. That part's fine. It is the fact that they are different colours. For instance, that light blue isn't just a brighter sky-blue, it is now almost more of a teal. Changing brightness is one thing, but changing the actual colours... No, not a fan of that.
Keep in mind, that this is the first snapshot of 1.12. There will be changes made further down the line, so I wouldn't get too spiteful just yet. Maybe Mojang was just trying something out, and with enough opposition they'll change it back?
Well, I'm not fond of the changes to wool. Light blue in particular I rather like the way it is. All the new stuff, however, looks great. Both the concrete and terracotta will add some interesting construction possibilities.
And that quickbar change is just plain useful. : )
I have to agree with the light blue wool...and a lot of the more vibrant wool, but I guess that's what a texture pack is for, right?
I actually haven't found myself using the save-toolbar function all that much. I'd rather grab the blocks out of my inventory with the middle-mouse button. I can see how it's useful though.
I was testing out block combinations to swap out the hardened clay block in my base (they were accent blocks, so I thought they would fit better with the sci-fi theme), and I noticed that the new color palette didn't match the already-existing glass palate in all colors. This might just be a nit-pick of mine, but it's something I couldn't help but notice.
As for the terracotta blocks, I think some work well (blue, gray, light-gray), but most (in my opinion), are just blocks to be re-textured. I can't see how exactly they can be incorporated in any build, but feel free to prove me wrong.