array of four integers in the range 0-255, defining an RGBA color. The four values specify the following channels:
- Alpha (opacity).
For example, opaque red is
[255, 0, 0, 255].
BCD tables only load in the browser
Note: This API is based on Chromium's
chrome.action API. This documentation is derived from
browser_action.json in the Chromium code.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.