chromium/third_party/blink/web_tests/virtual/dark-mode-images-filter-all/dark-mode/images/README.txt

# This suite runs the tests in web_tests/dark-mode/images with
# --blink-settings=forceDarkModeEnabled=true and
# --dark-mode-settings=ImagePolicy=0
# See the virtual_test_suites() method in tools/blinkpy/web_tests/port/base.py.