devtools.panels.onThemeChanged

{{AddonSidebar}} 

Fired when the devtools theme changes.

Syntax

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.

Browser compatibility

{{Compat}} 

Examples

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

{{WebExtExamples}} 

[!NOTE] This API is based on Chromium’s chrome.devtools.panels API.