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.
warnings
nstablecellview
memory-sanitizer
gcp
oracle-call-interface
nan
custom-data-type
fireos
genetic-algorithm
data-structures
qr-code
webtorrent
table-variable
animatedvectordrawable
onready
runatserver
rancher
criterion
telerik-editor
ibinspectable
skypack-cdn
spring-test
zxspectrum
visualgdb
azure-iot-hub-device-update
unluac
sqldroid
safari-extension
oracle11g
mediaplayerelement