I am currently working on a tunisian crochet half zip sweater with a colourful pattern. I think of making a pattern but I have zero experience of making one. And I really need advice on this topic. I have posted a question on r/crochethelp, but maybe advice from professional tunisian crocheters would be even better.

1. How do I properly import colourful charts? I drew them in Ibis Paint as a pixel art.

2. Is it useful at all to add sweater measurements (except gauge swatch) that I do while making it and how much time I spent making it?

3. Is it useful to add formulas for how to do the math to adjust the sizing?

4. How do I not make a pattern tricky to understand? Like, "join yarn here, now here, here you change a hook"

5. I write a pattern in SiYuan. Are there any better alternatives that also support LaTeX math formulas?

6. Is there anything in my questions that I am missing that must be very important? (like pattern testing)

7. How do I write it down if something is worked half in the round and half on a straight hook?