- Remove convertFromU32.. where necessary
- Replace convertFromU32 to .encode() for better readability
- Fix spacing issues in tabs
- Fix spacing issues in popups
- Fix weird font rendering in certain menus.
- Fix dialog changing sizes by huge amount when changing languages
- Some minor changes from String::format to U32String::Format
By implementing MetaEngine::buildEngineOptionsWidget, engines can
instantiate a container widget that will be shown in the Engine tab of
the edit game dialog. The default implementation retains the existing
behavior and shows the extra GUI options.