In #173 we reverted a theme change that had been made to make the "your webview is too old" dialog not ugly. This is because the theme change brought with it a titlebar colour change.

To have the best of both world, we can define a theme that derives from the Material theme and only overrides the statusbar/titlebar colour. For extra credit, we could also explore using the setStatusBarColor API to adjust the titlebar colour to fit the content within.