Material icons containing "_" not rendered

[lolodomo]

There is no icon rendered when the name of the material icon contains a "_".

Item:

String TestTrend "Trend"

Sitemap:

Default item=TestTrend icon="material:trending_up"
Default item=TestTrend icon="material:favorite"

No icon on the first widget while icon is OK on the second widget.

[lolodomo]

3603 makes the job for framework7, I assume the same has to be done for material.

[lolodomo]

@jimtng : I see you already provided the fix for framework7. Maybe you could do the same for material icons ?

[jimtng]

I'll take a look later today