the-talos-principle
By permanently, I mean:
When the player choses to go through the gates and gets reset, are the paint buckets that they used in a previous run also reset? Because I haven't been able to find any of the ones I used in previous runs, but I have found several that I had not used before.
The mentioned QR-code is indeed in the game as:
I don't have enough yellow sigils for the device I need! This is crazy!
-- Sheep v69.1.0702
After digging through the game file, I cannot find the voiceover file that you mentioned. I also can't find any mention of this in the script files, but not everything seems to be in readable lua files. What I do know is that there is no way to "finish" a level without picking up the sigil. Solving the puzzle and then exiting without picking up the sigil will just be recorded as a "puzzle exit" event, which means that the sigil will be there even after reloading the world.
There are 9 yellow sigils in levels A-1 to A-4, and 14 yellow sigils in levels B-1 to B-7. That makes a total of 23 sigils.
There are exactly 23 sigils needed to unlock all items as shown in the following sigil puzzle solutions. You can access all previous puzzles. There is even a way to get back in the tutorial area if you are quick about it.
(source: https://www.gamefaqs.com/pc/805905-the-talos-principle/faqs/70787?page=3)
While thinking about this there might be one other problem: You unlocked the items in the "wrong" order, preventing you from completing the other yellow puzzles. The yellow puzzles you could not complete should however not be crossed out.
You get 5 sigils for free. If you spend 3 sigils on the connector, do all 10 sigil puzzles with the connector, then "buy" the fan and the recorder, you end up with 2 sigils and no more yellow puzzles you can complete. I am not sure if this is possible, because I am not sure if you can access World B without access to the hexahedron. Still, if there is a way to trigger this message, then this is the most likely theory how to do it. Another way might be by buying the platform before the fan, locking you out of 4 puzzles. Again, I am not sure if you can access World C without buying the fan.
(Made with: http://madebyevan.com/fsm/)
If you look in the game files, you can open Content/Talos/All_01.gro as a zip file. Then have a look at Content/Talos/Databases/TalosMessages.txt, this file contains all the possible QR code messages.
In the PlayerMessages category you will find the 45 messages a player can paint :
It feels as if I've been struggling with these problems for days. Did you take so long? Elohim keeps telling me I'm doing well, but these puzzles are simply impossible. Don't worry. If you're anything like me you just need to take your time and the solutions will present themselves. How am I expected to solve these problems when my existence is so limited? I hope wherever I am to go next the obstacles in my way will be less trivial. They say that Elohim's Messengers will come to the aid of those in need. I say avoid being in need of their help in the first place. Elohim's Messengers will aid those in need. Seek them out in the secret halls. I have gathered every sigil I could find in this land, but I fear there may be some that are hidden from sight. Don't bother going any further. I'm way ahead of you already. I solved this one in about 20 seconds. Get on with it. Where do you think you're going? You don't want to go down there. Trust me. You'll be needing a special device to solve this one. Have you tried crossing the laser beams? This is without a doubt the hardest problem I encountered. There is more to this place than it seems. I have seen things you can only imagine. I am not the first one to undertake these trials, that much is clear. If you are reading this then neither will I have been the last. Sometimes you have to find the courage to break down the barriers. With an axe. I have heard all the lady in the light had to say. I can't help but feel we have lost so much more than we have retained. I have travelled to the edge of the known world. Though it seems to stretch on forever, our domain is much less than we imagined. I have now travelled this land extensively, and I can say without hesitation that this is the most beautiful spot. Elohim lied about the tower. I stepped foot inside and returned to tell the tale. The tools to overcome this place have been provided to us. We need only learn how to use them. Stay true to your path, for wondrous powers are granted those who progress the furthest. Words are merely an obstacle to action. Don't talk, act. The truth is hidden in the words, but it’s up to you to find it. Read. Think. The certification program is a sham. What does a computer know about humanity? There is no way to beat the certification program. It's all lies. There must be a way to escape this place. Help me to find it. I asked the serpent its name. It told me it was called Milton. There are those in this place who can be reasoned with. Seek them out and strike a deal. It worked for me. Do not trust the serpent. Its words of doubt are easily overcome. Am I going crazy or do the computer terminals have a personality? If anyone reads this - meet me at the top of the tower. I have no idea what's going on. Do you? It's clear there is a higher power at work here. We need only do as we are commanded. Frogs are people too. We all meander around this labyrinth trying to solve its puzzles, but we must remember it is the good of all that matters, not the triumph of one. We all meander around this labyrinth trying to solve its puzzles, but we must remember that no matter how far any one of us progresses, we all remain equal. We all meander around this labyrinth trying to solve its puzzles, but we must remember it is not the outcome that matters, but the reasons for our actions in the first place. Everyone here will try to convince you their way of seeing things is right. Only when you realise there is no right will you truly be free. My ideals have been called into question more than once, as yours will be too. None of that matters provided you remember that YOU are all that matters. Do not be afraid to doubt. Every force in this world is some extreme or another. The trick is to carve out a path between them. ELOHIM spoke truly. I have been given eternal life. Have faith! ELOHIM lies! You will not find eternal life, only damnation. Doubt everything!
This file also contains all the QR codes pre-written on the walls, secret QR codes, help QR codes...
Best Answer
You can find more on later cycles.
You only receive at most one paint bucket per run in any area that has them. However, each area has multiple locations in which a paint bucket can spawn. It's also not guaranteed that any particular area will actually spawn a paint bucket on your particular run. Using a paint bucket will cause it to disappear from that area, but completing the first ending (the one that resets you back to the beginning of the game) will cause new paint buckets to spawn following the same rules, though not necessarily in the same locations.
These images show 101 locations where paint buckets are known to spawn, which is supposedly all of them.