Custom glyphs are blurry and oversaturated now

Partner Rank: 2

Verification builds: 1.17.30.24, 1.17.30.23
Regression builds: 1.17.30.20

Summary: The custom icons that are usually put in glyph_E0/glyph_E1 are now resampled in a way that makes them extremely ugly.

Impact: This breaks the look of various maps.

Repro Steps:

1. Open any world
2. Type this command:

   /tellraw @a {"rawtext":[{"text":"\ue100\ue101\ue102\ue103\ue104\ue105\ue106\ue107\ue108"}]}
   

Expected Results: It should look like this (screenshot attached):

Observed Results: It looks like this (screenshot attached):

Screenshots/Videos attached: Yes