HTML: Markup language
CSS: Styling language
#"/en-US/docs/Web/JavaScript/Reference/Global_Objects" data-glean-id="menu_click_submenu: javascript -> /en-US/docs/Web/JavaScript/Reference/Global_Objects" >Standard built-in objects
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A Theme object represents the specification of a theme.
A JSONobject that takes the same properties as the"theme" manifest key.
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This page was last modified onJul 17, 2025 byMDN contributors.
getCurrent()
reset()
update()
Theme
onUpdated
action
author
background
browser_action
browser_specific_settings
chrome_settings_overrides
chrome_url_overrides
commands
content_scripts
content_security_policy
declarative_net_request
default_locale
description
developer
devtools_page
dictionaries
externally_connectable
homepage_url
host_permissions
icons
incognito
manifest_version
name
offline_enabled
omnibox
optional_host_permissions
optional_permissions
options_page
options_ui
page_action
permissions
protocol_handlers
short_name
sidebar_action
storage
theme
theme_experiment
user_scripts
version
version_name
web_accessible_resources