Based on the images and PorterDuffModes in this page I downloaded images, initially even though they are png they had light and dark gray rectangles which were
warning-level
zenodo
invalid-characters
scalameta
jaws-screen-reader
oauth-2.1
key-value
httrack
conservation-laws
cluster-manager
iphone-privateapi
skfieldnode
wkhttpcookiestore
disk.frame
nullable-reference-types
mockito-inline
webkit2
post-meta
customization
b-tree
svnkit
java-batch
react-native-testing-library
gpu-managed-memory
apache-kafka
react-ref
maven-frontend-plugin
hidpi
powerpoint-2007
stormpath