Function GetAvailableThemes

src/openrct2-ui/interface/Theme.cpp:569–602

        std::string GetThemePath();

        static void GetAvailableThemes(std::vector<AvailableTheme>* outThemes)
        {
            Guard::ArgumentNotNull(outThemes, GUARD_LINE);

            outThemes->clear();

            NumPredefinedThemes = 0;
            for (auto predefinedTheme : kPredefinedThemes)
            {
                AvailableTheme theme{};
                theme.Name = predefinedTheme.Theme->Name;
                outThemes->push_back(std::move(theme));

                NumPredefinedThemes++;
            }

            auto themesPattern = Path::Combine(GetThemePath(), u8"*.json");
            auto scanner = Path::ScanDirectory(themesPattern, true);
            while (scanner->Next())
            {
                const auto& fileInfo = scanner->GetFileInfo();
                auto name = Path::GetFileNameWithoutExtension(fileInfo.Name);

                AvailableTheme theme{};
                theme.Name = name;
                theme.Path = GetThemeFileName(name);
                outThemes->push_back(std::move(theme));

                if (Path::Equals(CurrentThemePath, scanner->GetPath()))
                {
                    ActiveAvailableThemeIndex = outThemes->size() - 1;
                }
            }
        }

        static void LoadTheme(UITheme* theme)
        {