In progress.

Half done. The label in the code now reads VESO MAG, but those words are also painted into the window artwork itself, so the panel still shows MESO on screen. That needs an overlay drawn over the art - the shipped artwork file should not be edited.

Fixed in be390ba6 (the label; ab3efe9e covered the skill text earlier).

Cause: that caption is not text. The pet wing is drawn as ONE unmodified 177x181 bitmap from the WZ, with only item icons and invisible click areas placed over it - every caption in it (HP POC, PET HP, ITEM POC, MESO MAG, PICK UP, MOVE UP, PET RING...) is baked into that image. The label field in our data already said 'VESO MAG', and changing it did nothing on screen because its only consumers are the two equip toasts. That is exactly why the rename was invisible where you were looking.

Fix: the same treatment the item window already uses for its baked 'mesos' text - the caption's first line is covered in the exact background colour sampled from the art, and 'VESO' redrawn over it. Nothing is invented and the bundled art file is not modified; the wing is drawn unscaled, so the coordinates map 1:1. 'MAG' is left alone - it abbreviates MAGNET and is correct as it stands.

Retest: open the pet equip wing and check the caption at 1x.

Redone at your request: the word is now edited INTO the art instead of being painted over at draw time - the same way the Cash Shop's NexonID and NX labels were done.

It also fixes a real defect, not just the method. The old version blanked the caption with a flat #BBCCDD rectangle, but that plate is not flat - it is a dithered gradient (#BBCCDD 187px, #AABBCC 62, #99BBCC 19, #CCCCDD 17, #BBDDDD 14 across the caption band, which is what 4-bit-per-channel quantisation of a smooth gradient looks like). A solid fill over that leaves a smooth rectangle sitting in speckled surroundings.

The edit is a 1-bit stencil and every pixel comes out of that same PNG - nothing drawn, no colour invented:
- E, S and O are lifted from the word being replaced and moved 2px left (V is 5px where M is 7px).
- The V is lifted from the MOVE UP cell's own V. Same bitmap font, proved not assumed: the M and E of MESO are bit-for-bit identical to the M and E of MOVE.
- Left-aligned at x48, which is where the MAG line below starts, so the two lines still line up.
- Only cells the old word inked and the new one does not are filled, each from its nearest neighbour, so the background continues instead of being flattened.

A re-measurement caught a mistake of mine on the way, now fixed: my first attempt shifted the whole strip, which dragged a pet-silhouette watermark crossing this cell 2px sideways and kinked it for those five rows. The stencil never moves the background. 62 pixels change, all inside the caption box.

Commits 5ccc1349 then 7c1a4839 on develop.

Retest note: the window texture is cached for the page lifetime, so it needs a full page reload - reopening the equipment window will not re-fetch it.