This is a small mod that makes tree seeds (among others) less pointless because you can grind them for oil. It uses the newly implemented SELECT_MATERIAL support in 50.13, which makes it minimally intrusive and should avoid conflicts with other mods that alter plants (as long as they don't alter these specific seeds). The modified seeds are all seeds that I could find examples IRL of oil products. I have made an effort to base the colour of the resulting soaps in real-life photos of various plant soaps, and to name products according to commonly used cosmetic names (e.g. nut paste is often "butter" as in "almond butter", paradise nut paste is "sapucaia" and so on.).

You can press coffee beans into oil and make soap out of it, but I opted not to implement coffee roasting and roasted coffee oil, to avoid conflicts with other plant mods. Avocado oil is implemented as extracted from fruit, not seed. The list of oil-bearing seeds with this mode includes:

- Acorn
- Almond
- Apricot
- Avocado (fruit)
- Candlenut
- Cashew
- Cherry
- Chestnut
- Coffee
- Hazel nut
- Macadamia
- Paradise nut
- Peach
- Pecan
- Plum
- Walnut

This is my first mod so I welcome criticism. I hope I've packaged it correctly.