Why is this marked as RESOLVED when this bug is still in the game. I just tested it in 19w38b.
Please fix this issue. It is not something like a critical bug but it definitely will help resource pack creators. Being able to add translucent particles would be great. At least for particles. This support for translucent particles already existed before 1.14+ release. Please bring it back.
Still in 1.14.4. Please fix.
Walls for example