This is the Bow Charge Indicator.
This texture improves the look of the bow by making the charge phases of the bow easier to identify. This texture will help you identify the phases by having a brightly colored arrow that is in the bow change color. This will go from red to yellow to green based on how far back the bow is
All Bow Texture Phases.
The first phase has a bright red color to indicate low power.
The second phase has a bright yellow color to indicate medium power.
The third and last phase has a bright green color to indicate full power.
Here is an easy link so you can instantly download the resource pack.
HOW TO DOWNLOAD:
1. Double click the download link.
2. Wait for it to fully install.
3. Go to the file location (should be in downloads).
4. Double click the “Bow Charge Indicator .mcpack” file.
5, Minecraft will open and the file with begin importing.