A Fabric-based proof-of-concept modpack that makes Java Edition look like Bedrock Edition.
This is done by a custom FancyMenu config, several mods and a resource pack.
The pack is simply meant to showcase what's possible, I do not intend to support or maintain it.
If you want to, you are free to fork and improve this pack, it is released as public domain.

* If you're seeing a weird bar at the top, try pressing CTRL + ALT + C.
* If your title screen image is distorted, try maximizing the window.

Used resourcepack is made by Nana-mi and contributors, can be found from: https://www.planetminecraft.com/texture-pack/bedrock-edition-styled-ui

Credits in spoiler:

Proof of allowing the resource pack in modpacks:

So according to that comment I'll just credit everyone:

Nana-mi - The main resource pack

TheResourceMan - For providing the Piston model, Grass and Foliage vibrancy from Bedrock Edition.
NoobKing07 - For providing the true Bedrock Edition Panorama textures and Removed Sweeping particles and sounds!
elefreividomg - For suggesting features to add to the resource pack.
Nixel - For providing Biome Water Colors from Bedrock Edition!
darthgeorge43 - For suggesting the Purple Raid Boss Health bar!
DraminOver - For providing Fully Colored Wool for Sheep from Bedrock Edition!
PackMinecraft - For providing 3D Lily Pads from Bedrock Edition!
Noatry - For providing Old School door sounds!
NotCraftingTable - For providing Bedrock Steve!
xojamface - For suggesting Bedrock Exclusive Splash text and providing a whole bunch of Bedrock-style fixes!
WoofDoggensten - For suggesting old sounds, bedrock-style fishing rod, and providing bedrock chests, signs and explosion fx!
Enchanted_Games - For their tutorial on editing hardcoded colors! (XP Text and Item Hover)

Bunkstone