The resources app allows a user to upload both binary files - images/videos, and text files - plaintext, yaml, etc.

Expected—working as of 6.1:

1. Binary files are stored under a sub-node named binary of node-type mgnl:resource, with file content stored as JCR Binary property named jcr:data.
2. Uploaded text files are stored directly under the content node, with file content stored as JCR String property named text, in plain text.
3. In addition to plain-text files (text/plain / .txt), XML and YAML files should be treated as text files.

Actual:

1. Uploaded plain text and YAML files have a text property set, but with content stored as a JCR Binary property.
2. Uploaded XML files are completely treated as binary files instead of text files.

The info.magnolia.resources.app.data.ResourcePropertySetFactory manages the creation of node and setting appropriate properties for a file uploaded in resources app.
Old implementation should be ported from ResourcesContentConnector, and unit tests should be ported as well.

See also attached exports for actual/expected structure for comparison.