主题海报版式设计

{
  "type": "VTuber debut stream thumbnail",
  "character": {
    "appearance": "anime girl, long dark purple hair, purple eyes, frilly white blouse, dark purple bow tie, large hair bow",
    "pose": "finger to lips, cute expression",
    "props": "condenser microphone with pop filter and purple ribbon on the right"
  },
  "background": "magical starry night, sparkles, glowing butterflies, purple and white color palette",
  "layout": {
    "typography": [
      {
        "position": "top left",
        "style": "large bold text with cursive English above",
        "text": "{argument name=\"main title\" default=\"初配信\"}",
        "subtext_1": "First Stream",
        "subtext_2": "Nice to meet you! I am Shisaki Lily!"
      },
      {
        "position": "middle left",
        "style": "decorative box",
        "text": "{argument name=\"character description\" default=\"お嬢様学校に通う清楚系VTuberですわ♪\"}"
      },
      {
        "position": "bottom left",
        "style": "logo style",
        "text": "{argument name=\"character name\" default=\"紫咲リリー\"}",
        "subtext": "Shisaki Lily"
      },
      {
        "position": "top right",
        "style": "vertical text",
        "text": "{argument name=\"catchphrase\" default=\"皆さまの心に、優雅なひとときをお届けしますわ♪\"}"
      },
      {
        "position": "bottom right",
        "style": "decorative pill shape",
        "text": "{argument name=\"stream date and time\" default=\"4.21 SUN 21:00~\"}",
        "subtext": "✦ START ✦"
      }
    ]
  }