Each Color Kid has an alliterative name, a name that is a pun, or a reference to the particular color they represent. The notable exception is the character Lala Orange. This seems random and inconsequential at first, but it is probably a reference to the fact that the word "orange" is, famously, the least rhymable word in the English language. Lyricists frequently fill space with nonsense syllables such as "la la" when working on drafts of songs, before they can come up with adequate rhymes. Thus, being unable to find any word that rhymes with "orange," the only logical name for the character is Lala!
It could be inspired by the French dish canard à l'orange. It's duck roasted in bigarade sauce.
In the 2014 reboot, it's discovered that Brian is actually a descendant of Krys. This indicates that the reboot version of Krys must have died before the reboot series started off-screen.
When we first see Red Butler in "Beginning of Rainbow Land", he's locked up a stone cell in the color cave. More than likely, since he was the Color Kids' defacto leader, the King of Shadows intentionally locked him up there, in plain sight of the resources needed to defeat him but just out of reach. There were no Sprites to help him mine them, and if by some miracle he escaped on his own, he'd only be able to get the Red Color Crystals, and have no clue where the other six color kids are, meaning it'd all be useless.
His attempt at making a deal with Rainbow by killing Baby Brite? Well it doesn't exactly hold up as we are made aware that Baby Brite is no baby, just a body taken by the sphere of light, who refuses to tell Rainbow and allows her to get in danger over a little bit of color. It seems as if the Sphere of Light isn't exactly honest, especially to Rainbow, and is the only one out of the two willing to hurt a real child.
For that matter, why would the king of Shadow's place the color kids in jail without a reason? Although not every political imprisonment is justified, considering color kids are the minority and change the planet to a way the majority don't like, why don't they make an attempt for the sphere of light themselves and create a reverse Pitt where they can live in a small colored kingdom? It's to be understood that The King of Shadows doesn't like color, but it seems that a majority of the planet do not as well (or don't care) like the 7 of them do. From the talking, sentient trees, to the large river fish, it seems that while they do not care for their naturally uncolorful world, it only really benefits the color kids, and later visitors of the planet.
For what it's worth, the Pitts are seen as an awful, unlivable place just because it upholds the former values that the majority of the planet did. Murky Dismal may hate color because of a past memory, but the way in which he fights to return his country to it's old ways surpasses any sort of simple disdain of color. In fact, although he and Lurky are also natural citizens, they do not get a say in how the majority of their planet gets to look and behave, and are deemed villains for wanting more spaces that uphold their past traditions and aesthetics.
It also should be noted that the Sprites outnumber Murky and Lurky and the late King of Shadows, and they seem pretty fine with the regime change.
The presence of color is strongly implied to be tied directly to health and vitality, as demonstrated not only by the barrenness of Rainbow Land until the restoration of the Color Kids and establishment of Rainbow, but by actually seeing exhausted things in Rainbow Land and on Earth regain their energy when infused by color. So what happens if Murky ever wins and color is gone from everywhere, forever?
