Ip grabber vibes womp womp
Why not use imgur, anyway its not as simple as downloading the file and putting it in server, they wolud have to make a render of every single flag individually, unless u want to make the render and implement it in resourcepack

Djmaximow ur dumb, thats a site where u can design ur own flags

dj has his iq in his username (2)

Never heard of it in my life just use photoshop not that deep

dj isn't my guilty if u never used a page to desing