"On Fire" is a hype title for a YouTube video, in a blazing fire style. Two heavy stacked words look carved out of live flame, with dark charred rims, flying sparks and embers on a black background. Swap in your own hype word and drop it on a highlight thumbnail.

Create a 16:9 high-impact gaming thumbnail graphic. Render only the exact words "ON FIRE"—no other text, numbers, logos, or symbols. Set "ON" above "FIRE" as two enormous centered lines, filling about 80% of the canvas width and 70% of its height, safely inside the edges. Use ultra-bold, compact display capitals with broad strokes and open counters; form every letter from photorealistic combustion. Letter bases glow deep crimson, transitioning through vivid orange to yellow-white hot cores and flame tips. Add thick, sharply defined dark outlines and a restrained black drop shadow for clear separation at phone-thumbnail size. Flames rise from the letter edges; a few glowing embers and short sparks trail outward without crossing or obscuring the words. Use a near-black charcoal background with a subtle dark-red glow directly behind the lettering; keep the remaining background uncluttered. High-contrast directional firelight, crisp edges, realistic heat distortion kept close to the letters, polished cinematic 3D render. The words must be spelled exactly: ON FIRE.