I noticed that in my Google Drive, some Markdown files are marked with a blue icon and are indexed:
Those with the icon of StackEdit (which is no longer even integrated into my Drive) are not indexed and don't even have the option Open With > Google Docs when I right-click them.
What's different about the files? And how do I "fix" all of them to be blue? Missing indexing on most of my text content is a bit of a pain.