Java Terrain is quite an odd one and simple, surprised that this parity issue hasn't been fixed yet—but in a brief introduction; Java Terrain is a rather small MC component (or addon as you would say) that modifies MC Bedrock's terrain generation ever so slightly, to match that of Java Edition. Specifically, between both versions, Bedrock Edition tends to lack a higher distribution of grass in it's terrain generation; the main existence of this pack is fix and address this parity issue.
Select version for changelog:
Java Terrain (Generation) | v1.01 (Onion Hotfix)
Full Changelog:
□ Based from all feedback I've gathered previously, the Plains Biome now displays it's CORRECT/DEFAULTED color... rather than that "Vibrant Green", from the previous version (v1.0, I'll also be referring to each update as a fruit or vegetable... cause, based from prior knowledge; they're healthy for you.)
□ Savanna biomes should no longer generate with coarse dirt as it's first layer.
◇ (Well... oops... that one was on me. I intentionally changed it to coarse dirt, just to ensure the pack was functioning properly, however, as an idiot; I didn't revert it back upon release).
□ (Altercations to the manifest.json file) The add-on pack version should now display the correct numerical input inside the manifest.json file (version 1.0.1 rather than 0.0.1–well... it's rather for personal benefit, just to keep track of each update—I additionally updated the pack description slightly—nothing too important.)
□ Gave the pack icon a huge overhaul; as the black and white abstract image didn't quite fit with the theme—that, and the lack of effort that I put into the image originally. 😐
□ The resource pack folder should now be displaying inside the global resources ("my texture packs") section—rather when setting up new MC world.
□ The "Resolution" slider should now be function properly—as it wasn't visually changing anything previously.
□ And finally... added "Onion"
◇ Removed, "Tomato"
If you play on XBox:
1. Download file
2. Rename file name extension to ".zip"
3. Place JavaTerrain(B) folder in the folder named behavior_packs (/LocalState/games/com.mojang)
4. Place JavaTerrain(R) folder in the folder named resource_packs (/LocalState/games/com.mojang)
5. Apply JavaTerrain resource pack to your world (with experimental features enabled).
If you do not see the resource_packs folder or behavior_packs folder, create the folder needed.