Also called "alpha component" is a digital graph value to modify the opacity of a pixel. It is added as a fourth channel to the three primary colors to give transparency to an image. In layouts with depth (actual or virtual ) a foreground element with reduced opacity will modify its color by blending with the color behind it. View rgb , rgba , hsl , hsla .
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list