The experience bar should look like the one from the first photo(this is how it looks in The Java Edition), It shouldn't look like the one from the third photo(the one from The Bedrock Edition).

As you can see in the second photo, when jumping in The Bedrock Edition with the horses jump boost, the bar looks like the one from the Java edition (the first photo) the only difference is that it has it s color changed. This is how it should work, it should only change it s color, not it s full texture. So, in the Bedrock Edition, the experience bar should look like the one from the second photo but have it s color changed to green.