Candle
Unsticking things — and the clearest example of the colour tables refusing to agree.
These are associations the community holds, not settled fact — the more a reading is shared, the bolder it sits.
If you want proof that candle colour correspondences are inherited rather than discovered, orange is the entry to look at. One book will put it under the Sun, another under Mercury, a third under Mars as a diluted red. All three are in print, all three have followings, and none can point to an older authority the others lack. Orange is also a latecomer as a colour word in English, which cannot have helped.
What the lists do broadly agree on is the use: movement. Orange is burned for attraction, momentum, negotiation, and situations that have gone stuck rather than wrong. It sits between red's heat and yellow's clarity and behaves like a mixture of the two, which is possibly all the correspondence ever was.
Practically it suits work with a deadline and an obstacle — an application stalled, a conversation avoided, a house that will not sell. White substitutes; red gives more heat and yellow more thought, and picking between them is generally a better question than picking the "correct" planet.
Readings practitioners have offered, ordered by how many recognise them. Take what serves, leave the rest.
Carried forward
Common in contemporary practice
Chosen when a working needs to move rather than to succeed — the distinction being that plenty of stuck situations only need to become unstuck before anyone can tell what they should be. Practitioners often pair it with a written statement of the specific obstacle.
Credit what you carry. Much of this comes from living traditions, and some of it from traditions that are closed — held by particular peoples and not offered for general use. Where you know whose practice a reading came from, name them; where you don't, say that too.