I hope Zovya doesn't mind me pulling back the curtain here, but I can answer this! Embeddings are unique among SD tools in that you can open them up and see how they work. The easiest way to do this is with the Embedding Inspector extension for AUTOMATIC1111.

An embedding is basically a collection of one or more vectors (which are giant piles of numbers), any of which could be built-in tokens (the bits of text that make up our normal prompts), custom vectors created from scratch via training, or a mix of both. You can also take built-in tokens and use them as a starting point for training, which is what Zovya did with CS-RBW.

If you put CS-RBW in Embedding Inspector, you'll see it appears to be a series of the tokens/text "color red black white primary saturation", but if you do a test by first putting that text in a prompt and then replacing it with "CS-RBW", the results aren't exactly the same. By comparing the numbers in the components of CS-RBW with the ones you get by looking up "color", "red", etc. individually, you can see why. The Magnitude, Min and Max are all slightly different, which means that Zovya also did at least a little bit of training. (It's impossible to know what kind of that training was, but given how small the differences are between the embedding and its ingredients, it must have been very, very light.)

What this means is that you can replace "red black white" with whatever you want ("color yellow black primary saturation" could give a Kill Bill vibe) and get similar (but not identical!) kinds of results, and you can even use Embedding Inspector to bundle them into simple reusable packages.

CS-RBW is ultimately a pretty simple embedding, but that doesn't mean it isn't the work of a highly skilled creator. Try plugging some of Zovya's Nobodies into Embedding Inspector for a look at the other style of work he does. That stuff is wild.

@A1322 where is this Embedding Inspector?

@A1322 So, if I don't have an embedding for the palette I want, I could basically get by with putting "color pink white lime primary saturation" at the end of my prompt? Would be exactly the same as the embedding, but it should work? And I could package it as an embedding without really training it and use for example CS-PWL instead? Or am I just going down the wrong rabbit-hole?

@dilectiogames from A1111, Extensions Tab, you can search for existing extensions and you should find it

I encourage everyone to play with Embedding Inspector to learn more about the embedding space.

Not only can you put tokens one after another, you can mathematically add them together, giving new single tokens that are similar to both but also different.

@Alyndiar Image colors were never particularly hard to adjust. Prompting 'color scheme red black white' does the same thing this embedding does. If it doesn't, increase the keyword weight.

@Alyndiar Nothing to do but give it a shot, right? In my experiments, creating the same image twice, with the only difference being one contained "CS-RBW" and one replaced it with "color red black white primary saturation", delivered almost (but not 100%) exactly the same image. Other colors should work similarly.

And you can definitely create simple embeds for your own convenience. If you just really like pictures of girls with glasses, short hair and freckles, you could make an embedding containing "girl glasses short hair freckles" and name it "whatacutie" and just use "whatacutie" going forward instead of typing all those other words. No training required.

All an embedding actually is is a way to add "words" to a dictionary without having to edit the existing dictionary. That can easily mean simply pointing to things you already have in that dictionary. You can think of training as a way to define words that are different than what you have on hand, with more foreign ideas being harder to define. When the thing you want to define is as simple as a palette of colors you already know about, the amount of training you need for that is probably none.

@AICasanova Agreed. They're a great starting point for learning about how SD works under the hood because they're only one or two steps away from the normal prompting that people do all the time and the ideas involved help with just about every other topic. (I'm not sure how I would have ever understood what UNets actually do without studying embeddings first.)

And even if someone doesn't want to go any further, knowing how the prompt system actually works makes someone way better at prompting in general, and that's awesome.

what happens if you add just one embedding in the positive prompt leaving the rest blank? close the console restart automatic, leave everything blank, use an embedding with nothing else. what happens?

@dilectiogames The strangest thing. So, I did what you suggested, left everything blank and ran it with just that single embedding. It worked. So I added in embeddings one at a time, at least, the ones I was using before. Kept working, until I added this one, "badhandv4"

Once I added that, it would take out this one. Even if they were the only two embeddings

Edit: And it is only badhandv4, I can add every embedding that I have, but badhandv4 is the only one that messes it up.

Edit 2: Further testing, it seems like it just randomly doesn't use those embeddings in my positive prompt, and only those. I thought it was become of badhandv4, but maybe it is the extensions I am using?

Edit 3: Apparently one of the embeddings I was using, for eyes, works if I put it in adetailer, but not in the positive prompt.

Absolutely. Such a simple concept, yet exactly what is sometimes wanted. Thank you!