Minecraft Item Frames

Hello! So, i was looking at all the new update features and, when i was glazing over the Item Frames section, i LOVED the idea of having invisible item frames. However, i tried what the update page said, and i did not work. Along with the fixed item frame trick. I don't know if i was doing it wrong, or if this is a bug. I put the frame in an anvil and named it Invisible, then placed it and still saw it. I also got a name tag and tried naming the frame, but i cannot do that unfortunately because it just places the tag in the frame. Thank you for the update! I have experimented with it so far and its truly amazing.