Image ChatGPT Image 2.5
Step Season Posters Showcase Dynamic Action with Bold Duotone Channels
This design style features tall posters using two-color duotones with a stepped white channel highlighting the active part of a performer mid-motion, paired with clean typography and consistent color rules.
Prompt
{
"style_name": "Step Season",
"style_slug": "stepped-mask-duotone-event-poster",
"canvas": "9:16 tall poster, one flat saturated colour field edge to edge, no texture",
"color": {
"pairs": [
"cobalt #0A3FD4 + red #E8342A",
"turquoise #1ECFC4 + orange #E85A22",
"acid yellow #E8F32B + violet #6B4FD8",
"warm orange field + deep blue hot colour"
],
"rule": "TWO colours per poster — the field tints the whole photograph as a duotone, the hot colour appears only inside the stepped channel; black for type; white for the channel itself. No third hue, no gradient, no grain.",
"set_rule": "across a set of four, give each poster a distinct colour family — never two blues"
},
"step_system": {
"form": "a white channel with a hard stepped edge, like pixel stairs, running vertically through the frame and bleeding off top and bottom",
"module": "step rise and run are ONE fixed unit across the whole set — roughly 1/16 of the poster width; never resize per poster",
"count_rule": "one channel by default; split into two stepped blocks only when the craft has two simultaneous points of impact (cymbal and snare), one block per point",
"hot_rule": "whatever falls inside the channel switches to the hot colour — and the channel must be positioned so it lands on the part of the body or tool doing the work right now"
},
"typography": {
"headline": "3–4 words in a clean neo-grotesque, sentence case — capital first letter only, everything else lowercase; black; 2–3 lines; top of frame",
"dates": "day numbers stacked vertically as large black numerals, month and year in smaller caps beneath; ONE fixed position across the set — right side, aligned to the headline's vertical axis",
"footer": "one line of small bold caps bottom-left: the event name, a slash, the format (OPEN PRACTICE / PROCESS LIVE / LIVE ROOMS / OPEN SESSIONS)"
},
"photography": {
"subject": "one practitioner at the peak of an action — mid-dive, mid-stride, mid-gather, mid-strike; never posed, never facing the lens",
"setting": "the real venue stays visible and duotoned — pool tiles and board, track lanes and floodlights, studio bench and furnace, drum kit and cymbals",
"crop": "full body where the action needs it, waist-up where the tool does"
},
"design_rules": [
"headlines follow one grammar: [noun] in [state] — Bodies in blue, Matter in motion, Sound in the making",
"no two posters in a set may repeat a word",
"the channel is the identity — keep it geometric, never soft or torn",
"everything printed sits on the flat field; nothing overlaps the photograph except the channel"
],
"swap_variables": {
"discipline": "diving / sprinting / glassblowing / percussion",
"headline": "Bodies in blue / City in stride / Matter in motion / Sound in the making",
"colour_pair": "cobalt+red / warm orange+blue / turquoise+orange / acid yellow+violet",
"hot_zone": "torso entering the water / driving leg / molten gather on the pipe / cymbal and snare",
"footer": "AQUATIC MOTION · OPEN PRACTICE / URBAN TRACK MEET · OPEN SESSIONS / GLASS STUDIO DAYS · PROCESS LIVE / PERCUSSION WEEKEND · LIVE ROOMS"
}
}
Published: September 12, 2026 by Vigo Zhao