Layer Panel Feature Enhancements

It is recommended to add the following features to the layer panel:
1. Add identification icons for layers, such as text layers, group layers, vector layers, node transformation layers, etc.
2. Add more attribute settings for layers, such as: document name, canvas size, canvas background, color space, resolution, filter settings, link settings, color labels, layer thumbnail size, etc.
3. Add layer filtering: Click the icon arrow to quickly filter by text, group, vector, transparency, color, lock, visibility, etc.


The issue names no files, tests, or entry points. Start by locating the layer panel implementation and determine which of the three feature groups can be scoped independently. Done should be defined as a specific, testable subset of the requested icons, attributes, or filters rather than the entire enhancement list.

Written by the indexing model from the issue text.