Unused pixels in beacon texture

Relates to: MC-176095 MC-199660 MC-208679 MC-250985

May also relate to: MC-159560

The bug

In both the vanilla textures and Programmer Art, the two topmost and bottommost rows of pixels in the beacon, as well as the three leftmost and rightmost columns of pixels, go completely unused - only the middle 10×12 rectangle is actually used.

How to fix

An easy fix - just replace the vanilla beacon texture file with the one attached, and replace Programmer Art's with the fixed Programmer Art beacon texture as well.