Modified version of BackstopJS Compare React app.
Rename config.js.example to config.js in "output" folder.
To develop the React project run...
npm run dev-compare
To build the React project run...
npm run build-compare
This will generate /output/index_bundle.js.
/output/index_bundle.js contains all styles and js for the HTML report. In normal BackstopJS operation his file bundle will be copied into the correct HTML report directory during a test flow (e.g. when running backstop test) after bitmap generation has completed. See: /core/command/report.js writeBrowserReport() method for details on this mechanism.
Note: The files diverged.js & diff.js are copied from node_modules to /output/ during build.