a17-split-screen-contrast

name	A17-split-screen-contrast
description	motion-graphic scene archetype — two contrasting columns or stacked panels showing oppositional concepts ("makers / breakers"). both panels enter simultaneously (or with tight stagger) and hold side-by-side. composes pop-in on both panels in parallel + optional dividing line between them.

A17 — split-screen contrast

Composes

• pop-in or slide on each panel (parallel timing)
• Optional squiggle-draw-on for a divider between panels
• bg-swap on entry

Layout

canvas: 1080x1920 (or pack-specified)

split_axis: vertical (most common) | horizontal

panel_left:
  position: left half (or top half)
  width: canvas_w / 2 (or full width if horizontal)
  bg: color_A
  copy_position: center of panel

panel_right:
  position: right half (or bottom half)
  width: canvas_w / 2
  bg: color_B   # contrasting
  copy_position: center of panel

divider:                                   # optional
  thin_line_or_squiggle
  color: ink

Choreography

phase_1_panels_enter:
  start_frame: 0
  effect: pop-in on both panels
  stagger_frames: 0-2                    # near-simultaneous

phase_2_copy_appear:
  start_frame: 8
  effect: pop-in on copy (inside each panel)
  parallel: true

phase_3_optional_divider:
  start_frame: 16
  effect: squiggle-draw-on (if pack supports)

phase_4_hold:
  start_frame: 24
  duration_frames: ≥ 30

Style pack compatibility

supported: [SP-A, SP-E]
preferred_in: [SP-E]
incompatible: [SP-C, SP-D, SP-F]

Pack-specific overrides

SP-E (chaos-card) — canonical

• Two saturated swatches contrasting (e.g. hot-pink "makers" / "breakers").
• Heavy display type, all caps.
• Music beat anchor.

SP-A (marshmallow)

• Pink left, cream right.
• Less common in this pack — feels more like SP-E energy.

Duration

duration_seconds: [1.5, 2.5]
default: 2.0

Short — the contrast lands quickly.

Quality Checks

• Two panels are visually distinct (different colors, not just dividing line).
• Copy in each panel is centered or anchored consistently.
• Both panels enter near-simultaneously (≤ 2-frame stagger).
• Divider (if used) doesn't dominate the composition.

Failure Modes

• Panels look like one panel with a thin divider. Bgs aren't contrasting enough. Pick higher-contrast pair.
• One panel enters much later than other. Stagger too large. Reduce to 0-2 frames.
• Copy doesn't fit inside each half-panel. Reduce font size or shorten copy.