I have custom icons that work fine on IOS and Android. When I deploy on the Web, a crossed out box appears in each place in the App where my icon should appear.
qtwebapp
microsoft-graph-edu
sql-convert
wwwroot
python-cmd
canoe
livecycle
listcellrenderer
jacoco-plugin
tinkerpop
ambient
project-layout
rhino
parsoid
schematron
smtpclient
windows-machine-learning
py-redis
activitytransitionapi
openbugs
tavern
rails-engines
wkwebviewconfiguration
git-filter-repo
arrow-python
error-handling
upsquared
snyk
sumoselect.js
nexus-player