LocalContentColor
CompositionLocal containing the preferred content color for a given position in the hierarchy. This typically represents the on
color for a color in ColorScheme. For example, if the background color is ColorScheme.surface, this color is typically set to ColorScheme.onSurface.
This color should be used for any typography / iconography, to ensure that the color of these adjusts when the background color changes. For example, on a dark background, text should be light, and on a light background, text should be dark.
Defaults to Color.Black if no color has been explicitly set.