Antique Atlas 4

Changes:

• Added coloured accents to placeable markers based on the background color.
  • accent textures are a bit noisy in places - we might add a resource pack to disable them.
  • _accent textures are drawn over the main texture, tinted to the landmark's dye colour.
• Change the default texture to a filled diamond shape, instead of a question mark.
• Gave all markers a page-coloured outline to help with visibility

Changelog: https://github.com/sisby-folk/antique-atlas/releases/tag/v2.7.0