Change your mind - Steven Universe. Rebooted in detail

Before Change your mind changes:
Ruby and Sapphire have not married yet, Ruby has just proposed.

First Episode:
Garnet, Amethyst, Pearl, Connie and Steven head to Homeworld accompanied by Blue Diamond and Yellow Diamond. Nothing changes until the ball.

The Ball
We get to see a lot more new gems with a scene where Steven and Connie gasp at them. Here are a few examples:

Glass Wood
Power: Built to run extreamly fast

Gems that are used to test certain areas, and to carry vehicles (just like horses). They aren't used as much at this beginning of an era. So they went from being above-average gems for non-important gems with importance much lower than rubies. They just sit and watch while a few assigned gems watch over them. They are bullied by everyone, including the diamonds. They are sometimes forced by soldiers to do their favors. They are considered non-important and even looking at a diamond wrong could result in them being shattered. Their population is decreasing, and at the ball they just sit and watch. (Some even act like chairs while High-important gems sit on them). Steven talks to Blue Diamond about these gems, but Blue Diamond spreads fake rumors about what they have been doing wrong. (Causing wars, and destruction upon buildings while that never happened).

They look skinny with big legs and often, but not always curly hair. (Since they often pop-up is often built near-iron sources because of tradition)

Steven makes Blue Diamond realize that these gems are good at fighting.

Flint, Impure Flint and Rock
These 3 gems are made in the same places. They were one of the oldest type of species to appear in gem-kind (made firstly by white). Flint gems are very powerful guards used only for maximum-protection. Flints are often impure (the older the more likely) rocks covers certain body parts that are kind of 'weak points'. These gems fuse harder than the others. Rocks are flints that are fully impure, they are similar to rubies except they poof very easily. The first two were used to bodyguard and train, the Rocks were paved for energy in a loop for thousands of years or were built into sculptures that would sit forever. Pure flints are known to be very loyal and are very good at fistfighting (even though they can summon axes), impure flints are known to have the same powers except they can't fistfight well because of their defensive-focused fighting.

Flints and Impue Flints don't match well with modern gems and they are often used to guard at the exit in modern times.

Unexplained-yet lore:
(Some flints are impure because the technology of early gem-kind couldn't get most of the flints out without rocks on them because of their nutrient-absorbing skin. Modern technology allowed flints to separate from their rocks, but this machine wasn't used often in the first two eras because Umpure Flints were considered to also have impure mind that would stick to them upon purifying)