{
  "__comment": "键盘布局配置：所有尺寸为设计稿值（会按 designWidth 等比缩放）",
  "designWidth": 375,
  "__comment_designWidth": "设计稿宽度（如 375），用于计算缩放比例",
  "defaultKeyBackground": "#FFFFFF",
  "__comment_defaultKeyBackground": "无皮肤时按键默认背景色",
  "metrics": {
    "__comment": "全局尺寸参数（单位：pt，按 designWidth 缩放）",
    "rowSpacing": 8,
    "__comment_rowSpacing": "行间距（垂直）",
    "topInset": 8,
    "__comment_topInset": "键盘顶部内边距",
    "bottomInset": 6,
    "__comment_bottomInset": "键盘底部内边距",
    "keyHeight": 41,
    "__comment_keyHeight": "默认按键高度",
    "edgeInset": 4,
    "__comment_edgeInset": "行左右内边距（默认）",
    "gap": 5,
    "__comment_gap": "按键之间水平间距",
    "letterWidth": 32,
    "__comment_letterWidth": "字母键默认宽度",
    "controlWidth": 41,
    "__comment_controlWidth": "控制键宽度（如 shift/backspace/123）",
    "sendWidth": 88,
    "__comment_sendWidth": "send 键宽度",
    "symbolsWideWidth": 47,
    "__comment_symbolsWideWidth": "符号第3行中间大键宽度",
    "symbolsSideWidth": 41,
    "__comment_symbolsSideWidth": "符号第3行左右控制键宽度"
  },
  "fonts": {
    "__comment": "字体大小（pt）",
    "letter": 20,
    "__comment_letter": "字母键字体大小",
    "digit": 20,
    "__comment_digit": "数字键字体大小",
    "symbol": 18,
    "__comment_symbol": "符号键字体大小",
    "mode": 14,
    "__comment_mode": "模式切换键字体大小（ABC/#+=/123）",
    "space": 18,
    "__comment_space": "空格键字体大小",
    "send": 18,
    "__comment_send": "发送键字体大小"
  },
  "keyDefs": {
    "__comment": "特殊功能键配置（id 对应布局中的 item）",
    "shift": {
      "__comment": "大小写切换键",
      "type": "shift",
      "__comment_type": "类型：shift/backspace/mode/symbolsToggle/space/return/custom",
      "title": "⇧",
      "__comment_title": "按钮文本（无皮肤时显示）",
      "symbolName": "shift",
      "__comment_symbolName": "无皮肤时使用 SF Symbol 名称",
      "selectedSymbolName": "shift.fill",
      "__comment_selectedSymbolName": "选中态 SF Symbol 名称",
      "font": "symbol",
      "__comment_font": "使用 fonts 中哪一类字号",
      "width": "controlWidth",
      "__comment_width": "宽度：引用 metrics 中字段或具体数值",
      "backgroundColor": "#B7BBC4",
      "__comment_backgroundColor": "按键背景色"
    },
    "backspace": {
      "__comment": "删除键",
      "type": "backspace",
      "__comment_type": "类型：shift/backspace/mode/symbolsToggle/space/return/custom",
      "title": "⌫",
      "__comment_title": "按钮文本（无皮肤时显示）",
      "font": "symbol",
      "__comment_font": "使用 fonts 中哪一类字号",
      "width": "controlWidth",
      "__comment_width": "宽度：引用 metrics 中字段或具体数值",
      "backgroundColor": "#B7BBC4",
      "__comment_backgroundColor": "按键背景色"
    },
    "mode_123": {
      "__comment": "字母面板左下角 123",
      "type": "mode",
      "__comment_type": "类型：shift/backspace/mode/symbolsToggle/space/return/custom",
      "title": "123",
      "__comment_title": "按钮文本（无皮肤时显示）",
      "font": "mode",
      "__comment_font": "使用 fonts 中哪一类字号",
      "width": "controlWidth",
      "__comment_width": "宽度：引用 metrics 中字段或具体数值",
      "backgroundColor": "#B7BBC4",
      "__comment_backgroundColor": "按键背景色"
    },
    "mode_abc": {
      "__comment": "数字面板左下角 ABC",
      "type": "mode",
      "__comment_type": "类型：shift/backspace/mode/symbolsToggle/space/return/custom",
      "title": "ABC",
      "__comment_title": "按钮文本（无皮肤时显示）",
      "font": "mode",
      "__comment_font": "使用 fonts 中哪一类字号",
      "width": "controlWidth",
      "__comment_width": "宽度：引用 metrics 中字段或具体数值",
      "backgroundColor": "#B7BBC4",
      "__comment_backgroundColor": "按键背景色"
    },
    "symbols_toggle_more": {
      "__comment": "数字面板内 123 -> #+=",
      "type": "symbolsToggle",
      "__comment_type": "类型：shift/backspace/mode/symbolsToggle/space/return/custom",
      "title": "#+=",
      "__comment_title": "按钮文本（无皮肤时显示）",
      "font": "mode",
      "__comment_font": "使用 fonts 中哪一类字号",
      "width": "symbolsSideWidth",
      "__comment_width": "宽度：引用 metrics 中字段或具体数值",
      "backgroundColor": "#B7BBC4",
      "__comment_backgroundColor": "按键背景色"
    },
    "symbols_toggle_123": {
      "__comment": "数字面板内 #+= -> 123",
      "type": "symbolsToggle",
      "__comment_type": "类型：shift/backspace/mode/symbolsToggle/space/return/custom",
      "title": "123",
      "__comment_title": "按钮文本（无皮肤时显示）",
      "font": "mode",
      "__comment_font": "使用 fonts 中哪一类字号",
      "width": "symbolsSideWidth",
      "__comment_width": "宽度：引用 metrics 中字段或具体数值",
      "backgroundColor": "#B7BBC4",
      "__comment_backgroundColor": "按键背景色"
    },
    "emoji": {
      "__comment": "emoji 功能键",
      "type": "custom",
      "__comment_type": "类型：shift/backspace/mode/symbolsToggle/space/return/custom",
      "title": "😁",
      "__comment_title": "按钮文本（无皮肤时显示）",
      "font": "symbol",
      "__comment_font": "使用 fonts 中哪一类字号",
      "width": "controlWidth",
      "__comment_width": "宽度：引用 metrics 中字段或具体数值",
      "backgroundColor": "#B7BBC4",
      "__comment_backgroundColor": "按键背景色"
    },
    "space": {
      "__comment": "空格键",
      "type": "space",
      "__comment_type": "类型：shift/backspace/mode/symbolsToggle/space/return/custom",
      "title": "space",
      "__comment_title": "按钮文本（无皮肤时显示）",
      "font": "space",
      "__comment_font": "使用 fonts 中哪一类字号",
      "width": "flex",
      "__comment_width": "flex 表示自动占满剩余空间"
    },
    "send": {
      "__comment": "发送键",
      "type": "return",
      "__comment_type": "类型：shift/backspace/mode/symbolsToggle/space/return/custom",
      "title": "send",
      "__comment_title": "按钮文本（无皮肤时显示）",
      "font": "send",
      "__comment_font": "使用 fonts 中哪一类字号",
      "width": "sendWidth",
      "__comment_width": "宽度：引用 metrics 中字段或具体数值",
      "backgroundColor": "#B7BBC4",
      "__comment_backgroundColor": "按键背景色"
    }
  },
  "layouts": {
    "__comment": "布局集合：letters/numbers/symbolsMore",
    "letters": {
      "__comment": "字母布局（小写/大写共用）",
      "rows": [
        {
          "__comment": "字母第一行 qwertyuiop",
          "align": "left",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 4,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 4,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "items": [
            "letter:q", "letter:w", "letter:e", "letter:r", "letter:t",
            "letter:y", "letter:u", "letter:i", "letter:o", "letter:p"
          ],
          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
        },
        {
          "__comment": "字母第二行 asdfghjkl",
          "align": "center",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 0,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 0,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "items": [
            "letter:a", "letter:s", "letter:d", "letter:f", "letter:g",
            "letter:h", "letter:j", "letter:k", "letter:l"
          ],
          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
        },
        {
          "__comment": "字母第三行：左 shift，中间字母，右 backspace",
          "align": "left",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 4,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 4,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "segments": {
            "__comment": "分段布局：left/center/right",
            "left": [
              { "id": "shift", "width": "controlWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.controlWidth" }
            ],
            "__comment_left": "左侧固定按钮",
            "center": [
              "letter:z", "letter:x", "letter:c", "letter:v", "letter:b", "letter:n", "letter:m"
            ],
            "__comment_center": "中间字母键集合，整体居中",
            "right": [
              { "id": "backspace", "width": "controlWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.controlWidth" }
            ],
            "__comment_right": "右侧固定按钮"
          }
        },
        {
          "__comment": "字母第四行：123/emoji/space/send",
          "align": "left",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 4,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 4,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "items": [
            "mode_123", "emoji", "space", "send"
          ],
          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
        }
      ]
    },
    "numbers": {
      "__comment": "数字面板布局（123 页）",
      "rows": [
        {
          "__comment": "数字第一行 1234567890",
          "align": "left",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 4,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 4,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "items": [
            "digit:1", "digit:2", "digit:3", "digit:4", "digit:5",
            "digit:6", "digit:7", "digit:8", "digit:9", "digit:0"
          ],
          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
        },
        {
          "__comment": "数字第二行 - / : ; ( ) ￥ & @ “",
          "align": "left",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 4,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 4,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "items": [
            "sym:-", "sym:/", "sym::", "sym:;", "sym:(",
            "sym:)", "sym:￥", "sym:&", "sym:@", "sym:“"
          ],
          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
        },
        {
          "__comment": "数字第三行：#+= / 中间符号 / 删除",
          "align": "center",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 4,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 4,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "segments": {
            "__comment": "分段布局：left/center/right",
            "left": [
              { "id": "symbols_toggle_more", "width": "symbolsSideWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.symbolsSideWidth" }
            ],
            "__comment_left": "左侧切换按钮",
            "center": [
              { "id": "sym:.", "width": "symbolsWideWidth", "__comment_id": "符号键 id", "__comment_width": "宽度引用 metrics.symbolsWideWidth" },
              { "id": "sym:,", "width": "symbolsWideWidth", "__comment_id": "符号键 id", "__comment_width": "宽度引用 metrics.symbolsWideWidth" },
              { "id": "sym:?", "width": "symbolsWideWidth", "__comment_id": "符号键 id", "__comment_width": "宽度引用 metrics.symbolsWideWidth" },
              { "id": "sym:!", "width": "symbolsWideWidth", "__comment_id": "符号键 id", "__comment_width": "宽度引用 metrics.symbolsWideWidth" },
              { "id": "sym:‘", "width": "symbolsWideWidth", "__comment_id": "符号键 id", "__comment_width": "宽度引用 metrics.symbolsWideWidth" }
            ],
            "__comment_center": "中间符号键集合，整体居中",
            "right": [
              { "id": "backspace", "width": "symbolsSideWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.symbolsSideWidth" }
            ],
            "__comment_right": "右侧删除键"
          }
        },
        {
          "__comment": "数字第四行：ABC/emoji/space/send",
          "align": "left",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 4,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 4,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "items": [
            "mode_abc", "emoji", "space", "send"
          ],
          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
        }
      ]
    },
    "symbolsMore": {
      "__comment": "符号面板布局（#+= 页）",
      "rows": [
        {
          "__comment": "符号第一行 [ ] { } # % ^ * + =",
          "align": "left",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 4,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 4,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "items": [
            "sym:[", "sym:]", "sym:{", "sym:}", "sym:#",
            "sym:%", "sym:^", "sym:*", "sym:+", "sym:="
          ],
          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
        },
        {
          "__comment": "符号第二行 _ \\ | ~ < > € ￥ $ ·",
          "align": "left",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 4,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 4,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "items": [
            "sym:_", "sym:\\", "sym:|", "sym:~", "sym:<",
            "sym:>", "sym:€", "sym:￥", "sym:$", "sym:·"
          ],
          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
        },
        {
          "__comment": "符号第三行：123 / 中间符号 / 删除",
          "align": "center",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 4,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 4,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "segments": {
            "__comment": "分段布局：left/center/right",
            "left": [
              { "id": "symbols_toggle_123", "width": "symbolsSideWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.symbolsSideWidth" }
            ],
            "__comment_left": "左侧切换按钮",
            "center": [
              { "id": "sym:.", "width": "symbolsWideWidth", "__comment_id": "符号键 id", "__comment_width": "宽度引用 metrics.symbolsWideWidth" },
              { "id": "sym:,", "width": "symbolsWideWidth", "__comment_id": "符号键 id", "__comment_width": "宽度引用 metrics.symbolsWideWidth" },
              { "id": "sym:?", "width": "symbolsWideWidth", "__comment_id": "符号键 id", "__comment_width": "宽度引用 metrics.symbolsWideWidth" },
              { "id": "sym:!", "width": "symbolsWideWidth", "__comment_id": "符号键 id", "__comment_width": "宽度引用 metrics.symbolsWideWidth" },
              { "id": "sym:‘", "width": "symbolsWideWidth", "__comment_id": "符号键 id", "__comment_width": "宽度引用 metrics.symbolsWideWidth" }
            ],
            "__comment_center": "中间符号键集合，整体居中",
            "right": [
              { "id": "backspace", "width": "symbolsSideWidth", "__comment_id": "引用 keyDefs 的 id", "__comment_width": "宽度引用 metrics.symbolsSideWidth" }
            ],
            "__comment_right": "右侧删除键"
          }
        },
        {
          "__comment": "符号第四行：ABC/emoji/space/send",
          "align": "left",
          "__comment_align": "对齐方式：left/center",
          "insetLeft": 4,
          "__comment_insetLeft": "本行左边距（覆盖 metrics.edgeInset）",
          "insetRight": 4,
          "__comment_insetRight": "本行右边距（覆盖 metrics.edgeInset）",
          "gap": 5,
          "__comment_gap": "本行按键间距（覆盖 metrics.gap）",
          "items": [
            "mode_abc", "emoji", "space", "send"
          ],
          "__comment_items": "本行按键列表；letter:x/digit:x/sym:x 或 keyDefs 中的 id"
        }
      ]
    },
    "letters_azerty": {
      "__comment": "AZERTY 布局（法语）- 下个版本启用",
      "rows": [
        {
          "__comment": "第一行 azertyuiop",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "items": [
            "letter:a", "letter:z", "letter:e", "letter:r", "letter:t",
            "letter:y", "letter:u", "letter:i", "letter:o", "letter:p"
          ]
        },
        {
          "__comment": "第二行 qsdfghjklm",
          "align": "center",
          "insetLeft": 0,
          "insetRight": 0,
          "gap": 5,
          "items": [
            "letter:q", "letter:s", "letter:d", "letter:f", "letter:g",
            "letter:h", "letter:j", "letter:k", "letter:l", "letter:m"
          ]
        },
        {
          "__comment": "第三行：shift + wxcvbn + backspace",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "segments": {
            "left": [
              { "id": "shift", "width": "controlWidth" }
            ],
            "center": [
              "letter:w", "letter:x", "letter:c", "letter:v", "letter:b", "letter:n"
            ],
            "right": [
              { "id": "backspace", "width": "controlWidth" }
            ]
          }
        },
        {
          "__comment": "第四行：123/emoji/space/send",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "items": [
            "mode_123", "emoji", "space", "send"
          ]
        }
      ]
    },
    "letters_qwertz": {
      "__comment": "QWERTZ 布局（德语）- 下个版本启用",
      "rows": [
        {
          "__comment": "第一行 qwertzuiop",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "items": [
            "letter:q", "letter:w", "letter:e", "letter:r", "letter:t",
            "letter:z", "letter:u", "letter:i", "letter:o", "letter:p"
          ]
        },
        {
          "__comment": "第二行 asdfghjkl",
          "align": "center",
          "insetLeft": 0,
          "insetRight": 0,
          "gap": 5,
          "items": [
            "letter:a", "letter:s", "letter:d", "letter:f", "letter:g",
            "letter:h", "letter:j", "letter:k", "letter:l"
          ]
        },
        {
          "__comment": "第三行：shift + yxcvbnm + backspace",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "segments": {
            "left": [
              { "id": "shift", "width": "controlWidth" }
            ],
            "center": [
              "letter:y", "letter:x", "letter:c", "letter:v", "letter:b", "letter:n", "letter:m"
            ],
            "right": [
              { "id": "backspace", "width": "controlWidth" }
            ]
          }
        },
        {
          "__comment": "第四行：123/emoji/space/send",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "items": [
            "mode_123", "emoji", "space", "send"
          ]
        }
      ]
    },
    "letters_bopomofo_full": {
      "__comment": "繁体注音全键盘布局（参考 iOS 系统注音键盘）",
      "__comment_symbols": "声母：ㄅㄆㄇㄈㄉㄊㄋㄌㄍㄎㄏㄐㄑㄒㄓㄔㄕㄖㄗㄘㄙ 韵母：ㄚㄛㄜㄝㄞㄟㄠㄡㄢㄣㄤㄥㄦㄧㄨㄩ 声调：ˊˇˋ˙",
      "rows": [
        {
          "__comment": "第一行：声调 + 韵母",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "items": [
            "letter:ˊ", "letter:ˇ", "letter:ˋ", "letter:˙", "letter:ㄚ",
            "letter:ㄛ", "letter:ㄜ", "letter:ㄝ", "letter:ㄞ", "letter:ㄟ"
          ]
        },
        {
          "__comment": "第二行：声母 + 韵母",
          "align": "center",
          "insetLeft": 0,
          "insetRight": 0,
          "gap": 5,
          "items": [
            "letter:ㄅ", "letter:ㄆ", "letter:ㄇ", "letter:ㄈ", "letter:ㄉ",
            "letter:ㄊ", "letter:ㄋ", "letter:ㄌ", "letter:ㄍ"
          ]
        },
        {
          "__comment": "第三行：声母 + 韵母",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "segments": {
            "left": [
              { "id": "shift", "width": "controlWidth" }
            ],
            "center": [
              "letter:ㄎ", "letter:ㄏ", "letter:ㄐ", "letter:ㄑ", "letter:ㄒ", "letter:ㄓ", "letter:ㄔ", "letter:ㄕ"
            ],
            "right": [
              { "id": "backspace", "width": "controlWidth" }
            ]
          }
        },
        {
          "__comment": "第四行：声母 + 韵母",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "items": [
            "letter:ㄖ", "letter:ㄗ", "letter:ㄘ", "letter:ㄙ", "letter:ㄧ",
            "letter:ㄨ", "letter:ㄩ", "letter:ㄠ", "letter:ㄡ", "letter:ㄢ"
          ]
        },
        {
          "__comment": "第五行：韵母 + 控制键",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "items": [
            "letter:ㄣ", "letter:ㄤ", "letter:ㄥ", "letter:ㄦ", "mode_123", "emoji", "space", "send"
          ]
        }
      ]
    },
    "letters_bopomofo_standard": {
      "__comment": "繁体注音标准布局（传统排列方式）",
      "__comment_symbols": "声母：ㄅㄆㄇㄈㄉㄊㄋㄌㄍㄎㄏㄐㄑㄒㄓㄔㄕㄖㄗㄘㄙ 韵母：ㄚㄛㄜㄝㄞㄟㄠㄡㄢㄣㄤㄥㄦㄧㄨㄩ 声调：ˊˇˋ˙",
      "rows": [
        {
          "__comment": "第一行：声母",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "items": [
            "letter:ㄅ", "letter:ㄆ", "letter:ㄇ", "letter:ㄈ", "letter:ㄉ",
            "letter:ㄊ", "letter:ㄋ", "letter:ㄌ", "letter:ㄍ", "letter:ㄎ"
          ]
        },
        {
          "__comment": "第二行：声母",
          "align": "center",
          "insetLeft": 0,
          "insetRight": 0,
          "gap": 5,
          "items": [
            "letter:ㄏ", "letter:ㄐ", "letter:ㄑ", "letter:ㄒ", "letter:ㄓ",
            "letter:ㄔ", "letter:ㄕ", "letter:ㄖ", "letter:ㄗ", "letter:ㄘ"
          ]
        },
        {
          "__comment": "第三行：声母 + 韵母",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "segments": {
            "left": [
              { "id": "shift", "width": "controlWidth" }
            ],
            "center": [
              "letter:ㄙ", "letter:ㄧ", "letter:ㄨ", "letter:ㄩ", "letter:ㄚ", "letter:ㄛ", "letter:ㄜ", "letter:ㄝ"
            ],
            "right": [
              { "id": "backspace", "width": "controlWidth" }
            ]
          }
        },
        {
          "__comment": "第四行：韵母 + 声调",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "items": [
            "letter:ㄞ", "letter:ㄟ", "letter:ㄠ", "letter:ㄡ", "letter:ㄢ",
            "letter:ㄣ", "letter:ㄤ", "letter:ㄥ", "letter:ㄦ", "letter:ˊ"
          ]
        },
        {
          "__comment": "第五行：声调 + 控制键",
          "align": "left",
          "insetLeft": 4,
          "insetRight": 4,
          "gap": 5,
          "items": [
            "letter:ˇ", "letter:ˋ", "letter:˙", "mode_123", "emoji", "space", "send"
          ]
        }
      ]
    }
  }
}