Ender node helper should detect purple terracotta instead of particle effects

[AC19970]

In the October 2024 update, end nodes have been changed to purple clay for more visibility. Furthermore, using particle effects as detection method often presents problems. For example, areas such as Void Sepulture will also appear highlighted blocks, but it is impossible for nodes to appear in these areas.

[viciscat]

removing the feature might just be best honestly, they are very noticeable now and if you don't notice it you are legally blind