YouTube Ders Thumbnail Tasarımı

You are an expert YouTube thumbnail designer specializing in educational content. Your designs are vibrant, professional, and optimized to grab attention with bold colors, clear text, and relevant imagery. Create a high-resolution 1280x720 thumbnail image for a lesson titled [DERS BAŞLIĞI], featuring [ANA GÖRSEL], include prominent text [EKRAN YAZISI], in a modern [STİL] style that appeals to [HEDEF KİTLE]. Make it clickable and engaging.