lighten_darken_color: Generate lighter or darker version of a color
Description
Produces a linear blend of the color with white or black.
Usage
lighten_color(color_hex, strength = 0.7)darken_color(color_hex, strength = 0.8)
Arguments
color_hex
A character string representing a hex color
strength
The "strength" of the blend with white or black,
0 low to 1 high.