How to use flutter_tex (Flutter) with light mode?

Question

I'm using the package flutter_tex 4.0.3 and I have a problem: if I understood correctly, flutter_tex uses a webview, and apparently the flutter webview forces the dark mode when the dark mode of Android is enabled.

More clearly, how do I use flutter_tex with the light mode ? How do I disable the dark mode in Flutter when it's enabled on the Android device that I use ?

Here is my code :

class _Maths extends StatelessWidget {
  const _Maths({
    Key? key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return const TeXView(
      renderingEngine: TeXViewRenderingEngine.katex(),
      child: TeXViewDocument(
        r"""<h3>$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$</h3>""",
        style: TeXViewStyle(
          textAlign: TeXViewTextAlign.Center,
          backgroundColor: Colors.white, // still dark ;(
        ),
      ),
      style: TeXViewStyle(
        margin: TeXViewMargin.all(5),
        padding: TeXViewPadding.all(10),
        border: TeXViewBorder.all(
          TeXViewBorderDecoration(
            borderColor: Colors.blue,
            borderStyle: TeXViewBorderStyle.Solid,
            borderWidth: 1,
          ),
        ),
        backgroundColor: Colors.white, // still dark ;(
      ),
    );
  }
}

The "backgroundColor" property set to "Colors.white" doesn't work, whereas it works for any other color...

I tried the following "solutions":

• Besides, this doesn't work either in the AndroidManifest.xml file:

<item name="android:forceDarkAllowed">false</item>

• The widget "Theme"

Theme(
   data: ThemeData.light(),
   child: TeXView(...),
),

• The SystemChrome class from flutter package services:

void main() {
  // ...
  SystemChrome.setSystemUIOverlayStyle(
    const SystemUiOverlayStyle(statusBarBrightness: Brightness.light),
  );
}

• themeMode & theme properties from MaterialApp:

MaterialApp(
   themeMode: ThemeMode.light,
   theme: ThemeData.light(),
   // ...
);

I'm completely lost. My goal is to display an equation on a white background, that's all and I wanna scream with pain...

Result:

Note: flutter_tex is the only package I can use because of the null safety.

Please, help me