Add holidays pack

- Add holiday themes, palettes, and emojis

- Add holidays option and layout selection in installers

- Update context JSONs for holiday pack

contest-styles.json

@@ -29,6 +29,78 @@
       "night": "🕶️"
     }
   },
+  "holiday_pack": {
+    "layout_options": [
+      "day-time-user",
+      "user-time",
+      "time-user",
+      "day-time"
+    ],
+    "host_path_format": "@host - /path",
+    "prefix_newline": true,
+    "themes": {
+      "christmas": {
+        "palette": { "Z1_BG": 52, "Z1_FG": 255, "Z2_BG": 28, "Z2_FG": 255, "PATH_FG": 194, "FRAME": 88 },
+        "emoji_set": {
+          "sunrise": [ "🎄", "🎅", "❄️", "⛄" ],
+          "work": [ "🎁", "🧤", "🧣", "🦌" ],
+          "coffee": "☕",
+          "evening": "🌟",
+          "night": "🕯️"
+        }
+      },
+      "easter": {
+        "palette": { "Z1_BG": 186, "Z1_FG": 16, "Z2_BG": 150, "Z2_FG": 16, "PATH_FG": 94, "FRAME": 143 },
+        "emoji_set": {
+          "sunrise": [ "🐣", "🥚", "🌷", "🌤" ],
+          "work": [ "🐰", "🌼", "🧺", "🍫" ],
+          "coffee": "☕",
+          "evening": "🌅",
+          "night": "🌙"
+        }
+      },
+      "halloween": {
+        "palette": { "Z1_BG": 53, "Z1_FG": 255, "Z2_BG": 166, "Z2_FG": 16, "PATH_FG": 16, "FRAME": 89 },
+        "emoji_set": {
+          "sunrise": [ "🎃", "🦇", "🌕", "🕸️" ],
+          "work": [ "👻", "💀", "🕯️", "🧪" ],
+          "coffee": "☕",
+          "evening": "🌆",
+          "night": "🕷️"
+        }
+      },
+      "valentine": {
+        "palette": { "Z1_BG": 198, "Z1_FG": 255, "Z2_BG": 205, "Z2_FG": 255, "PATH_FG": 224, "FRAME": 162 },
+        "emoji_set": {
+          "sunrise": [ "💖", "🌹", "💘", "💕" ],
+          "work": [ "💌", "🍫", "🕊️", "💗" ],
+          "coffee": "☕",
+          "evening": "🌆",
+          "night": "🌙"
+        }
+      },
+      "thanksgiving": {
+        "palette": { "Z1_BG": 94, "Z1_FG": 230, "Z2_BG": 136, "Z2_FG": 231, "PATH_FG": 223, "FRAME": 130 },
+        "emoji_set": {
+          "sunrise": [ "🦃", "🍁", "🥧", "🍂" ],
+          "work": [ "🍽️", "🌾", "🧺", "🥖" ],
+          "coffee": "☕",
+          "evening": "🌆",
+          "night": "🌙"
+        }
+      },
+      "newyear": {
+        "palette": { "Z1_BG": 17, "Z1_FG": 255, "Z2_BG": 20, "Z2_FG": 255, "PATH_FG": 229, "FRAME": 19 },
+        "emoji_set": {
+          "sunrise": [ "🎆", "🥂", "🎇", "✨" ],
+          "work": [ "🗓️", "⏳", "🚀", "✨" ],
+          "coffee": "☕",
+          "evening": "🌆",
+          "night": "🌙"
+        }
+      }
+    }
+  },
   "styles": [
     {
       "id": "aurora",