Loudly Proclaim the Solution!

[mlissner]

I've been using this add-on for a while and have generally appreciated it. Today though, I finally learned about a much better solution. In about:config, you can set:

widget.content.gtk-theme-override

To a light them, like Adwaita:light, and it will render widgets using that theme!

I think this is big enough news that you should consider doing a popup tab for anybody that uses this extension on Linux. I think if you add something like this to your background page, it should work when the user gets the upgrade:

function showNotificationTab(details){
  // Show some kind of notification tab to the user after install/upgrade.
  console.debug("showing install/upgrade notification if version matches");
  let currentVersion = chrome.runtime.getManifest().version;
  if (details.reason === 'update' && currentVersion === '1.2.3'){
    // This version is when we pushed for using about:config. Show that page.
    chrome.tabs.create({
      url: 'https://some-url-you-control'
    });
  }
}

chrome.runtime.onInstalled.addListener(showNotificationTab);

On top of this, I think you should put a big notice about this in the configuration page so people notice it there, and in the description of the add-on, so people notice it there, before they install.

In short: I've loved this extension for quite a while, but I think you should do everything in your power to make people use about:config and to uninstall this extension.

[DmitriK]

Added some information about this to the readme. I'll still maintain this extension for users who wish to keep some native styles in content. I'd rather not use a popup as that is a bit too invasive IMO.

[mlissner]

It's super invasive, but I think a lot of people would be happy to see it an uninstall an extension.

[xrat]

widget.content.gtk-theme-override has a different effect. I much prefer darkContrast! The override allows to specify a "light" theme (dark text color on light background) to fix the problem of illegible text in widgets. darkContrast, however,

does not modify element colors if it determines that they already have good contrast.

For instance, I have <textarea>s with no colors defined, which, hence, use the theme's colors. With the override I get dark text on light background. With the add-on I get my theme's colors which is light gray on black.