Figure 4. Complete gradient.
Discrete separation of each layer should be visible. Top→Bottom: 15%, 25%, 40%, and 60%
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.