I try your module using webtrees 2.0 and i have this error:
Fatal error: Declaration of MagicSunday\Webtrees\FanChart\Traits\UtilityTrait::boot(Fisharebest\Webtrees\Module\ModuleThemeInterface $theme): void must be compatible with Fisharebest\Webtrees\Module\FanChartModule::boot(): void in ........\htdocs\webtrees\modules_v4\webtrees-fan-chart\src\Module.php on line 30
I try your module using webtrees 2.0 and i have this error:
Thanks