How to automate lead nurturing with ActiveCampaign - Detailed Guide : High-contrast YouTube thumbnail, huge bold 3–4 word headline including the brand name, very large thick font, official brand logo clearly visible and accurate, main device matching the topic (smartphone for apps, laptop for web, smart TV for streaming, credit card for banking), close-up realistic UI screen, red arrow pointing to key button, glow highlight around important area, dark blurred background, yellow and white text with black shadow stroke, clean tech layout, simple composition, no people, no clutter, 16:9, ultra sharp, modern viral tutorial style.