Fishing Barrel Tweaks

Someway to see how many fish are in a placed barrel:
- this would be useful so you dont have to constantly pick it up and check. Maybe like have it so the water texture changes to appear like theres more fish inside.

2. A way to customize/dye the barrel:
- This would be useful for organization: for example, someone could have a red barrel for fish they want to sell, and a blue barrel for fish they want to keep- would be very useful for sorting your fish.