What I have so far:
Abilities:
Universal
Telepathy - Allows the psion to communicate with others mentally. Mind reading is possible, but only if the target's will is overcome and the psion is very skilled.
Dreamscape - A psion can learn how to enter their mental landscape, which takes the form of their personality, struggles, and other parts of them. With permission, they can enter the 'dreamscape' of another person.
Red
Psi Lance - A psychokinetic bolt of energy, like a psi 'bullet' of varying sizes.
Pyro Conjuring - The ability to create fire but not directly manipulate it. (This can be overcome with telekinesis)
Telekinesis - Lifting objects with psionic force and manipulating them in this manner.
Destructokinesis - Essentially, the power to create explosions in a limited capacity.
Soul Fire - Flames that both burn the target and deal more damage if they have lower will than the user.
Purple
Psi Panic - If the target's will is overcome, the psion can make them panic, often by bringing up horrific memories or images.
Mind-Merge - Allows the psion to merge with another psion, strengthening the receiver's will and the projector's by half that much.
Neural Feedback - Like the genetic version, reflects offensive mental psionic attacks like mindfray and psi panic, causing neural pain and damage. Unlike the genetic version, if the psion has the ability that is being directed at them, they can redirect it (and it doesn't have to be mental).
Mind Control - A difficult ability. If the psion overcomes their target's will, they can seize control of them and direct their actions. Single target mind control is more complete, but against several weaker-willed targets it is possible to use a puppeteer version to control their basic actions together.
Subsume - A powerful ability. Tendrils of psionic energy that drain enemy psions, but can be destroyed with most attacks. More sturdy and speedy-to-drain based on the psion's will.
Blue
Mindfray - Threads of psionic energy (coming in various appearances) that disrupts the target's concentration if their will is overcome, causing them to hallucinate and suffer neural pain.
Extrasensory Perception (ESP) - Allows the psion to expand their senses, or even view areas they are not currently in. Masters of this ability can also use it to have limited precognition about 5 to 10 seconds into the future.
Physical Enhancement - Strengthens the user's body using psionic energy, making them physically stronger and even faster.
Cryokinesis - The ability to create and manipulate frozen substances, mainly water.
Animal Empathy - Specialized telepathy that allows blues to communicate with animals, terrestrial or otherwise.
Green
Biokinesis - The ability to control biological processes. This can be used to heal or cause pain, but not both. It can also be used to induce pleasure or biologically program others in addition to one of the other two prior, but not both of the latter two in conjunction.
Imbuing - The power to strengthen physical objects, making them harder and stronger. Can also be used to supercharge the power cores of armor or weaponry.
Psi Inspiration - The opposite of psi panic, psi inspiration can be used to strengthen the will of allies and remove panic. The former use strengthens other psionic abilities used afterwards.
Override - A difficult ability. The psion can detach their mind from their body, taking on a spirit form (often invisible) that they can use to possess targets.
Yellow
Teleimagery - The ability to create illusions. Some psions are able to do this by bending light, while others manipulate the perception of observers.
Telekinetic Field - The use of telekinetic force to stop incoming projectiles, often used as a psionic shield.
Electrokinesis - The ability to control electricity. It can also be used to control power sources like charge packs or generators of varied kinds, but this is much more difficult than basic electricity.
Orange
Telekinesis - Lifting objects with psionic force and manipulating them in this manner.
Psi Panic - If the target's will is overcome, the psion can make them panic, often by bringing up horrific memories or images.
Rift - A psychokinetic storm that lifts and damages anything in its path. A powerful ability, it initially manifests in a small and weak scope, but can be specialized to be concentrated like a tornado and extremely destructive, or wide but less destructive like a hurricane.
Blink - The power to teleport in a limited range. Doing so into walls or other areas the user could not be naturally, or not the whole body of the psion, would result in a likely horrible death.
Aerokinesis - The power to manipulate the air, moving gases, particularly oxygen.