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`BottomNavigation` doesn't cast a shadow upwards, although I've set `elevation = 16.dp` to it.

Update: It is there but not visible enough. I've tried setting elevation to a bigger value like `64.dp`

Using `Modifier.shadow` doesn't work at all

This probably happens because of the way android casts shadows

the implied lightsource is slightly above the upper part of the screen

so the bottom bar would receive a shadow cast below (which is outside of the screen area)

Not same but slightly related <https://issuetracker.google.com/issues/160665122|https://issuetracker.google.com/issues/160665122>

<@U70599FU1> Material spec shows shadow upwards <https://material.io/components/bottom-navigation#specs|https://material.io/components/bottom-navigation#specs>

<https://storage.googleapis.com/spec-host-backup/mio-components%2Fassets%2F16_mdeMoej9KYqE6_7gV0qw6H-1arSKmK%2Fspecs-bottomnav-mobile-portrait.png|https://storage.googleapis.com/spec-host-backup/mio-components%2Fassets%2F16_mdeMoej9KYqE6_7gV0qw6H-1arSKmK%2Fspecs-bottomnav-mobile-portrait.png>

<@UK0BH8CJZ> It does, but its a very subtle little thing, compared to the one it would cast below. The elevation just has a lot less impact on shadows cast upward as opposed to downward.