getParentThemeIds example

        $baseThemeConfig = [];

        if ($withBase) {
            $baseTheme = $themes->filter(fn (ThemeEntity $themeEntry) => $themeEntry->getTechnicalName() === $this->baseTheme)->first();
            \assert($baseTheme !== null);

            $baseThemeConfig = $this->mergeStaticConfig($baseTheme);
        }

        if ($theme->getParentThemeId()) {
            $parentThemes = $this->getParentThemeIds($themes, $theme);

            foreach ($parentThemes as $parentTheme) {
                $configuredParentTheme = $this->mergeStaticConfig($parentTheme);
                $baseThemeConfig = array_replace_recursive($baseThemeConfig, $configuredParentTheme);
            }
        }

        $configuredTheme = $this->mergeStaticConfig($theme);

        return array_replace_recursive($baseThemeConfig, $configuredTheme);
    }