Paginated Advancements completely overhauls the advancement screen by adding a load of features:

• Makes the screen bigger, instead of a fixed size
• Adds Pagination (no "this modpack has too many tabs to display them all" anymore!)
• Pin the advancement tabs you are currently focusing on
• Remembering the last opened tab

Also adds some styling options, to make the screen exactly how you prefer it:

• Disable background fading
• Configurable Spacing between tabs. Allowing them to be condensed quite a bit, or giving them more room to breathe

With version 2.0 comes the ability to register new advancement frames, including custom colors, via data pack / mods that support it. Find out how in the Wiki

Each Frame requires:

• 2 textures:
  • assets/<mod_id>/textures/gui/sprites/advancements/<frame_name>_unobtained.png
  • assets/<mod_id>/textures/gui/sprites/advancements/<frame_name>_obtained.png
• a metadata file under assets/<mod_id>/advancement_frame_types\<frame_name>.json

The json can have the following properties:

• style (optional): vanilla style specification for use in the advancement description text
• item_offset_x (optional): horizontal offset for rendering the item in the frame
• item_offset_y (optional): vertical offset for rendering the item in the frame

Example:

{
  "style": {
    "color": "yellow",
    "strikethrough": true
  },
  "item_offset_x": 0,
  "item_offset_y": -4
}

Add a metadata file under assets/<mod_id>/advancement_frames\<whatever_name_you_want>.json. That json should specify a list of advancement:frame entries.

You can pick from the vanilla frames (task, challenge, goal), one of the ones shipped by Paginated Advancements, or your own (see above).

[
  {
    "advancement": "minecraft:story/upgrade_tools",
    "frame": "minecraft:goal"
  },
  {
    "advancement": "minecraft:story/cure_zombie_villager",
    "frame": "paginatedadvancements:arrow_right"
  }
]