[ShadowElevations] Defined elevation for Card Resting does not match guidelines

[lazyneighbour]

According to Material Design guidelines the card resting elevations should be set to 1. MDCShadowElevationCardResting is defined as 2.

Reproduction steps

Use MDCCardView with default values, then compare to MDCCardView after setting shadow elevation to MDCShadowElevationCardResting. There is visible difference in shadow and shadow elevation values does not match.

Expected behavior

Default elevation for MDCCardView should be the same as MDCShadowElevationCardResting value. And both should match guidelines. Currently only MDCCardView default elevation does match guidelines.

Actual behavior

Using default values for MDCCardView gives different result to setting MDCShadowElevationCardResting manually.

Platform

• Device: any
• OS: any

Additional context

Link to related guidelines: https://material.io/design/environment/elevation.html

This is probably the line that creates this bug ;) https://github.com/material-components/material-components-ios/blob/e479b366e735e55056b93559b6dc5eb29e4af47a/components/ShadowElevations/src/MDCShadowElevations.h#L46