Since the ThemeProvider interface changed `fun getThemeId()` to `var themeId`, I had to adjust how it was used in the EmulationActivity. Similar case for `fun getConfiguredControllerType()`.
Since the ThemeProvider interface changed `fun getThemeId()` to `var themeId`, I had to adjust how it was used in the EmulationActivity. Similar case for `fun getConfiguredControllerType()`.