Some Material Icons not visible on some android versions

Also if not strictly related to framework7…

While all material icons are displayed in browser, I noticed that
quite some of them aren’t visible on old mobiles and/or old android versions.

For example the ‘show_chart’ icon is displayed on an Huawei P8 - Android 7.0
but not on an old Samsung with Android 4.4.

There is a correlation between Svg icons and the different PixelRatio of the two mobiles (3 vs 1.5) or what else ?


Because of there is underscore in the name, which is not supported in older android

Thanks robinyip,

and I’ve just realized for the same underscore reason that if you use
an icon like settings_backup_restore on old androids you will get 3 icons :slight_smile: in one time