diff --git a/Assets/MatugenTemplates/niri.kdl b/Assets/MatugenTemplates/niri.kdl
new file mode 100644
index 00000000..6646dc84
--- /dev/null
+++ b/Assets/MatugenTemplates/niri.kdl
@@ -0,0 +1,29 @@
+layout {
+    background-color "transparent"
+
+    focus-ring {
+        active-color   "{{colors.primary.default.hex}}"
+        inactive-color "{{colors.outline.default.hex}}"
+        urgent-color   "{{colors.error.default.hex}}"
+    }
+
+    border {
+        active-color   "{{colors.primary.default.hex}}"
+        inactive-color "{{colors.outline.default.hex}}"
+        urgent-color   "{{colors.error.default.hex}}"
+    }
+
+    shadow {
+        color "{{colors.shadow.default.hex}}70"
+    }
+
+    tab-indicator {
+        active-color   "{{colors.primary.default.hex}}"
+        inactive-color "{{colors.outline.default.hex}}"
+        urgent-color   "{{colors.error.default.hex}}"
+    }
+
+    insert-hint {
+        color "{{colors.primary.default.hex}}80"
+    }
+}
diff --git a/Assets/Translations/de.json b/Assets/Translations/de.json
index 7b7b5c03..01d6b431 100644
--- a/Assets/Translations/de.json
+++ b/Assets/Translations/de.json
@@ -1037,6 +1037,14 @@
         }
       },
       "templates": {
+        "compositors": {
+          "description": "Fenster-Compositor-Theming",
+          "label": "Compositor/innen",
+          "niri": {
+            "description": "{filepath}\n\nBenötigt niri v25.11+",
+            "description-missing": "Benötigt die Installation von {app}"
+          }
+        },
         "misc": {
           "description": "Zusätzliche Konfigurationsoptionen.",
           "label": "Verschiedenes",
@@ -1258,10 +1266,10 @@
           "label": "Nachtlicht"
         },
         "temperature": {
-          "description": "Farbwärme für Nacht- und Tageszeit einstellen.",
-          "label": "Farbtemperatur",
           "day": "Tag",
           "day-description": "Steuert die Farbtemperatur tagsüber.",
+          "description": "Farbwärme für Nacht- und Tageszeit einstellen.",
+          "label": "Farbtemperatur",
           "night": "Nacht",
           "night-description": "Steuert die Farbtemperatur nachts."
         }
diff --git a/Assets/Translations/en.json b/Assets/Translations/en.json
index 29fd3a4b..aa018368 100644
--- a/Assets/Translations/en.json
+++ b/Assets/Translations/en.json
@@ -1037,6 +1037,14 @@
         }
       },
       "templates": {
+        "compositors": {
+          "description": "Window compositor theming",
+          "label": "Compositors",
+          "niri": {
+            "description": "{filepath}\n\nRequires niri v25.11+",
+            "description-missing": "Requires {app} to be installed"
+          }
+        },
         "misc": {
           "description": "Additional configuration options.",
           "label": "Misc",
@@ -1258,10 +1266,10 @@
           "label": "Night Light"
         },
         "temperature": {
-          "description": "Set the color warmth for nighttime and daytime.",
-          "label": "Color temperature",
           "day": "Day",
           "day-description": "Controls the temperature during daytime.",
+          "description": "Set the color warmth for nighttime and daytime.",
+          "label": "Color temperature",
           "night": "Night",
           "night-description": "Controls the temperature during nighttime."
         }
diff --git a/Assets/Translations/es.json b/Assets/Translations/es.json
index b8b16ec8..9ea8a6c9 100644
--- a/Assets/Translations/es.json
+++ b/Assets/Translations/es.json
@@ -1037,6 +1037,14 @@
         }
       },
       "templates": {
+        "compositors": {
+          "description": "Tematización del compositor de ventanas",
+          "label": "Compositores",
+          "niri": {
+            "description": "{filepath}\n\nRequiere niri v25.11+",
+            "description-missing": "Requiere que {app} esté instalada."
+          }
+        },
         "misc": {
           "description": "Opciones de configuración adicionales.",
           "label": "Varios",
@@ -1258,10 +1266,10 @@
           "label": "Luz nocturna"
         },
         "temperature": {
-          "description": "Establece la calidez del color para la noche y el día.",
-          "label": "Temperatura de color",
           "day": "Día",
           "day-description": "Controla la temperatura durante el día.",
+          "description": "Establece la calidez del color para la noche y el día.",
+          "label": "Temperatura de color",
           "night": "Noche",
           "night-description": "Controla la temperatura durante la noche."
         }
diff --git a/Assets/Translations/fr.json b/Assets/Translations/fr.json
index d67109fe..ca0cd371 100644
--- a/Assets/Translations/fr.json
+++ b/Assets/Translations/fr.json
@@ -1037,6 +1037,14 @@
         }
       },
       "templates": {
+        "compositors": {
+          "description": "Thèmes du compositeur de fenêtres",
+          "label": "Compositeurs",
+          "niri": {
+            "description": "{filepath}\n\nRequiert niri v25.11+",
+            "description-missing": "Nécessite l'installation de {app}"
+          }
+        },
         "misc": {
           "description": "Options de configuration supplémentaires.",
           "label": "Divers",
@@ -1258,10 +1266,10 @@
           "label": "Éclairage nocturne"
         },
         "temperature": {
-          "description": "Réglez la chaleur des couleurs pour la nuit et le jour.",
-          "label": "Température de couleur",
           "day": "Jour",
           "day-description": "Contrôle la température pendant la journée.",
+          "description": "Réglez la chaleur des couleurs pour la nuit et le jour.",
+          "label": "Température de couleur",
           "night": "Nuit",
           "night-description": "Contrôle la température pendant la nuit."
         }
diff --git a/Assets/Translations/ja.json b/Assets/Translations/ja.json
index 1d164656..c9c1da01 100644
--- a/Assets/Translations/ja.json
+++ b/Assets/Translations/ja.json
@@ -1037,6 +1037,14 @@
         }
       },
       "templates": {
+        "compositors": {
+          "description": "ウィンドウコンポジタのテーマ",
+          "label": "合成者",
+          "niri": {
+            "description": "{filepath}\n\nniri v25.11+ ga hitsuyou desu",
+            "description-missing": "{app} がインストールされている必要があります"
+          }
+        },
         "misc": {
           "description": "その他の設定オプション",
           "label": "その他",
@@ -1258,10 +1266,10 @@
           "label": "夜間モード"
         },
         "temperature": {
-          "description": "日中と夜間の色温度（暖かさ）を設定します。",
-          "label": "色温度",
           "day": "日中",
           "day-description": "昼間の色温度を調整します。",
+          "description": "日中と夜間の色温度（暖かさ）を設定します。",
+          "label": "色温度",
           "night": "夜間",
           "night-description": "夜間の色温度を調整します。"
         }
diff --git a/Assets/Translations/nl.json b/Assets/Translations/nl.json
index 783857c8..e2116fc3 100644
--- a/Assets/Translations/nl.json
+++ b/Assets/Translations/nl.json
@@ -1037,6 +1037,14 @@
         }
       },
       "templates": {
+        "compositors": {
+          "description": "Theming van venstersamensteller",
+          "label": "Compositors",
+          "niri": {
+            "description": "{filepath}\n\nVereist niri v25.11+",
+            "description-missing": "Vereist dat {app} is geïnstalleerd."
+          }
+        },
         "misc": {
           "description": "Aanvullende configuratie-opties.",
           "label": "Diversen",
@@ -1258,10 +1266,10 @@
           "label": "Nachtlicht"
         },
         "temperature": {
-          "description": "Stel de kleurwarmte voor nacht en dag in.",
-          "label": "Kleurtemperatuur",
           "day": "Dag",
           "day-description": "Regelt de kleurtemperatuur overdag.",
+          "description": "Stel de kleurwarmte voor nacht en dag in.",
+          "label": "Kleurtemperatuur",
           "night": "Nacht",
           "night-description": "Regelt de kleurtemperatuur 's nachts."
         }
diff --git a/Assets/Translations/pt.json b/Assets/Translations/pt.json
index 4cc2c43e..9cbcb4e4 100644
--- a/Assets/Translations/pt.json
+++ b/Assets/Translations/pt.json
@@ -1037,6 +1037,14 @@
         }
       },
       "templates": {
+        "compositors": {
+          "description": "Tematização do compositor de janelas",
+          "label": "Compositores",
+          "niri": {
+            "description": "{filepath}\n\nRequer Niri v25.11+",
+            "description-missing": "Requer que o {app} esteja instalado."
+          }
+        },
         "misc": {
           "description": "Opções de configuração adicionais.",
           "label": "Diversos",
@@ -1258,10 +1266,10 @@
           "label": "Luz noturna"
         },
         "temperature": {
-          "description": "Defina o quão quente a cor será durante a noite e o dia.",
-          "label": "Temperatura da cor",
           "day": "Dia",
           "day-description": "Controla a temperatura durante o dia.",
+          "description": "Defina o quão quente a cor será durante a noite e o dia.",
+          "label": "Temperatura da cor",
           "night": "Noite",
           "night-description": "Controla a temperatura durante a noite."
         }
diff --git a/Assets/Translations/ru.json b/Assets/Translations/ru.json
index 491b5ff7..d96b648c 100644
--- a/Assets/Translations/ru.json
+++ b/Assets/Translations/ru.json
@@ -1037,6 +1037,14 @@
         }
       },
       "templates": {
+        "compositors": {
+          "description": "Оформление композитора окон",
+          "label": "Компоновщики",
+          "niri": {
+            "description": "{filepath}\n\nТребуется niri v25.11+",
+            "description-missing": "Требуется установка {app}"
+          }
+        },
         "misc": {
           "description": "Дополнительные параметры конфигурации.",
           "label": "Разное",
@@ -1258,10 +1266,10 @@
           "label": "Ночной свет"
         },
         "temperature": {
-          "description": "Установите цветовую температуру для ночного и дневного времени.",
-          "label": "Цветовая температура",
           "day": "День",
           "day-description": "Управляет цветовой температурой в дневное время.",
+          "description": "Установите цветовую температуру для ночного и дневного времени.",
+          "label": "Цветовая температура",
           "night": "Ночь",
           "night-description": "Управляет цветовой температурой в ночное время."
         }
diff --git a/Assets/Translations/tr.json b/Assets/Translations/tr.json
index 8e194d6c..e32f925e 100644
--- a/Assets/Translations/tr.json
+++ b/Assets/Translations/tr.json
@@ -1037,6 +1037,14 @@
         }
       },
       "templates": {
+        "compositors": {
+          "description": "Pencere birleştirici temalandırma",
+          "label": "Birleştiriciler",
+          "niri": {
+            "description": "{filepath}\n\nniri v25.11+ gerektirir",
+            "description-missing": "{app} yüklü olmalıdır"
+          }
+        },
         "misc": {
           "description": "Ek yapılandırma seçenekleri.",
           "label": "Çeşitli",
@@ -1258,10 +1266,10 @@
           "label": "Gece ışığı"
         },
         "temperature": {
-          "description": "Gece ve gündüz için renk sıcaklığını ayarlayın.",
-          "label": "Renk sıcaklığı",
           "day": "Gündüz",
           "day-description": "Gündüz saatlerindeki renk sıcaklığını kontrol eder.",
+          "description": "Gece ve gündüz için renk sıcaklığını ayarlayın.",
+          "label": "Renk sıcaklığı",
           "night": "Gece",
           "night-description": "Gece saatlerindeki renk sıcaklığını kontrol eder."
         }
diff --git a/Assets/Translations/uk-UA.json b/Assets/Translations/uk-UA.json
index 03c82f87..6a235055 100644
--- a/Assets/Translations/uk-UA.json
+++ b/Assets/Translations/uk-UA.json
@@ -1037,6 +1037,14 @@
         }
       },
       "templates": {
+        "compositors": {
+          "description": "Оформлення композитора вікон",
+          "label": "Композитори",
+          "niri": {
+            "description": "{filepath}\n\nПотребує niri v25.11+",
+            "description-missing": "Потрібно встановити {app}"
+          }
+        },
         "misc": {
           "description": "Додаткові параметри конфігурації.",
           "label": "Різне",
@@ -1258,10 +1266,10 @@
           "label": "Нічне світло"
         },
         "temperature": {
-          "description": "Встановіть теплоту кольору для нічного та денного часу.",
-          "label": "Колірна температура",
           "day": "День",
           "day-description": "Керує колірною температурою вдень.",
+          "description": "Встановіть теплоту кольору для нічного та денного часу.",
+          "label": "Колірна температура",
           "night": "Ніч",
           "night-description": "Керує колірною температурою вночі."
         }
diff --git a/Assets/Translations/zh-CN.json b/Assets/Translations/zh-CN.json
index 845b6e8f..de3ac18b 100644
--- a/Assets/Translations/zh-CN.json
+++ b/Assets/Translations/zh-CN.json
@@ -1037,6 +1037,14 @@
         }
       },
       "templates": {
+        "compositors": {
+          "description": "窗口合成器主题",
+          "label": "合成器",
+          "niri": {
+            "description": "{filepath}\n\n需要 niri v25.11+",
+            "description-missing": "需要安装 {app}"
+          }
+        },
         "misc": {
           "description": "其他配置选项。",
           "label": "杂项",
@@ -1258,10 +1266,10 @@
           "label": "夜间模式"
         },
         "temperature": {
-          "description": "设置夜间和白天的颜色温暖度。",
-          "label": "色温",
           "day": "白天",
           "day-description": "控制白天的色温。",
+          "description": "设置夜间和白天的颜色温暖度。",
+          "label": "色温",
           "night": "夜间",
           "night-description": "控制夜间的色温。"
         }
diff --git a/Bin/colors-apply.sh b/Bin/colors-apply.sh
index 16574ba7..4f41acaa 100755
--- a/Bin/colors-apply.sh
+++ b/Bin/colors-apply.sh
@@ -4,7 +4,7 @@
 if [ "$#" -ne 1 ]; then
     # Print usage information to standard error.
     echo "Error: No application specified." >&2
-    echo "Usage: $0 {kitty|ghostty|foot|alacritty|wezterm|fuzzel|walker|pywalfox|cava}" >&2
+    echo "Usage: $0 {kitty|ghostty|foot|alacritty|wezterm|fuzzel|walker|pywalfox|cava|niri}" >&2
     exit 1
 fi
 
@@ -252,6 +252,29 @@ cava)
     fi
     ;;
 
+niri)
+    echo "🎨 Applying 'noctalia' theme to niri..."
+    CONFIG_FILE="$HOME/.config/niri/config.kdl"
+    INCLUDE_LINE='include "./noctalia.kdl"'
+
+    # Check if the config file exists.
+    if [ ! -f "$CONFIG_FILE" ]; then
+        echo "Config file not found, creating $CONFIG_FILE..."
+        mkdir -p "$(dirname "$CONFIG_FILE")"
+        echo "$INCLUDE_LINE" >"$CONFIG_FILE"
+        echo "Created new config file with noctalia theme."
+    else
+        # Check if include line already exists
+        if grep -qF "$INCLUDE_LINE" "$CONFIG_FILE"; then
+            echo "Theme already included, skipping modification."
+        else
+            # Add the include line to the end of the file
+            echo "$INCLUDE_LINE" >>"$CONFIG_FILE"
+            echo "✅ Added noctalia theme include to config."
+        fi
+    fi
+    ;;
+
 *)
     # Handle unknown application names.
     echo "Error: Unknown application '$APP_NAME'." >&2
diff --git a/Commons/Settings.qml b/Commons/Settings.qml
index 58e200de..63f0af16 100644
--- a/Commons/Settings.qml
+++ b/Commons/Settings.qml
@@ -549,6 +549,7 @@ Singleton {
       property bool telegram: false
       property bool cava: false
       property bool emacs: false
+      property bool niri: false
       property bool enableUserTemplates: false
     }
 
diff --git a/Modules/Panels/Settings/Tabs/ColorScheme/ColorSchemeTab.qml b/Modules/Panels/Settings/Tabs/ColorScheme/ColorSchemeTab.qml
index 4459af50..011c085e 100644
--- a/Modules/Panels/Settings/Tabs/ColorScheme/ColorSchemeTab.qml
+++ b/Modules/Panels/Settings/Tabs/ColorScheme/ColorSchemeTab.qml
@@ -574,6 +574,32 @@ ColumnLayout {
       }
     }
 
+    // Compositors
+    NCollapsible {
+      Layout.fillWidth: true
+      label: I18n.tr("settings.color-scheme.templates.compositors.label")
+      description: I18n.tr("settings.color-scheme.templates.compositors.description")
+      defaultExpanded: false
+
+      NCheckbox {
+        label: "Niri"
+        description: ProgramCheckerService.niriAvailable ? I18n.tr("settings.color-scheme.templates.compositors.niri.description", {
+                                                                     "filepath": "~/.config/niri/noctalia.kdl"
+                                                                   }) : I18n.tr("settings.color-scheme.templates.compositors.niri.description-missing", {
+                                                                                  "app": "niri"
+                                                                                })
+        checked: Settings.data.templates.niri
+        enabled: ProgramCheckerService.niriAvailable
+        opacity: ProgramCheckerService.niriAvailable ? 1.0 : 0.6
+        onToggled: checked => {
+                     if (ProgramCheckerService.niriAvailable) {
+                       Settings.data.templates.niri = checked;
+                       AppThemeService.generate();
+                     }
+                   }
+      }
+    }
+
     // Terminal Emulators
     NCollapsible {
       Layout.fillWidth: true
@@ -883,6 +909,7 @@ ColumnLayout {
                    }
       }
     }
+
     // Miscellaneous
     NCollapsible {
       Layout.fillWidth: true
diff --git a/Services/System/ProgramCheckerService.qml b/Services/System/ProgramCheckerService.qml
index aad945e7..2a8f240e 100644
--- a/Services/System/ProgramCheckerService.qml
+++ b/Services/System/ProgramCheckerService.qml
@@ -30,6 +30,7 @@ Singleton {
   property bool telegramAvailable: false
   property bool cavaAvailable: false
   property bool emacsAvailable: false
+  property bool niriAvailable: false
 
   // Discord client auto-detection
   property var availableDiscordClients: []
@@ -187,7 +188,8 @@ Singleton {
                                             "spicetifyAvailable": ["which", "spicetify"],
                                             "telegramAvailable": ["sh", "-c", "command -v telegram-desktop >/dev/null 2>&1 || command -v Telegram >/dev/null 2>&1 || (command -v flatpak >/dev/null 2>&1 && flatpak list --app | grep -q 'org.telegram.desktop')"],
                                             "cavaAvailable": ["which", "cava"],
-                                            "emacsAvailable": ["sh", "-c", "test -d \"$HOME/.config/doom\" || test -d \"$HOME/.emacs.d\""]
+                                            "emacsAvailable": ["sh", "-c", "test -d \"$HOME/.config/doom\" || test -d \"$HOME/.emacs.d\""],
+                                            "niriAvailable": ["which", "niri"]
                                           })
 
   // Internal tracking
diff --git a/Services/Theming/TemplateRegistry.qml b/Services/Theming/TemplateRegistry.qml
index d4ea7e08..7a60812c 100644
--- a/Services/Theming/TemplateRegistry.qml
+++ b/Services/Theming/TemplateRegistry.qml
@@ -246,6 +246,18 @@ Singleton {
         }
       ],
       "checkDoomFirst": true
+    },
+    {
+      "id": "niri",
+      "name": "Niri",
+      "category": "compositors",
+      "input": "niri.kdl",
+      "outputs": [
+        {
+          "path": "~/.config/niri/noctalia.kdl"
+        }
+      ],
+      "postProcess": () => `${colorsApplyScript} niri`
     }
   ]