devtools.panels.onThemeChanged

Fired when the devtools theme changes.

Syntax

js
browser.devtools.panels.onThemeChanged.addListener(listener)
browser.devtools.panels.onThemeChanged.removeListener(listener)
browser.devtools.panels.onThemeChanged.hasListener(listener)

Events have three functions:

addListener(listener)

Adds a listener to this event.

removeListener(listener)

Stop listening to this event. The listener argument is the listener to remove.

hasListener(listener)

Check whether listener is registered for this event. Returns true if it is listening, false otherwise.

addListener syntax

Parameters

listener

The function called when this event occurs. The function is passed this argument:

themeName

string. Name of the new theme: this will be one of the permitted values for devtools.panels.themeName.

Examples

js
browser.devtools.panels.onThemeChanged.addListener((newThemeName) => {
  console.log(`New theme: ${newThemeName}`);
});

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Firefox for Android
Safari on iOS
onThemeChanged
Chrome – No support
Chrome
footnote No support
Edge – No support
Edge
footnote No support
Firefox – Full support
Firefox 55 (Release date: 2017-08-08)
footnote Full support
Opera – No support
Opera
footnote No support
Safari – Full support
Safari 16 (Release date: 2022-09-12)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Safari on iOS – No support
Safari on iOS
footnote No support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support

Note: This API is based on Chromium's chrome.devtools.panels API.