diff --git a/linux.py b/linux.py
index 860bf62..3fa8bc8 100644
--- a/linux.py
+++ b/linux.py
@@ -138,7 +138,7 @@ def _on_exit(icon=None, item=None) -> None:
 
 
 def _edit_config_dialog() -> None:
-    if not ensure_ctk_thread(ctk):
+    if not ensure_ctk_thread(ctk, _config.get("appearance", "auto")):
         _show_error("customtkinter не установлен.")
         return
 
@@ -193,7 +193,7 @@ def _show_first_run() -> None:
     ensure_dirs()
     if FIRST_RUN_MARKER.exists():
         return
-    if not ensure_ctk_thread(ctk):
+    if not ensure_ctk_thread(ctk, _config.get("appearance", "auto")):
         FIRST_RUN_MARKER.touch()
         return
 
diff --git a/ui/ctk_theme.py b/ui/ctk_theme.py
index e1f23c3..41bb786 100644
--- a/ui/ctk_theme.py
+++ b/ui/ctk_theme.py
@@ -51,8 +51,11 @@ def ctk_theme_for_platform() -> CtkTheme:
     return CtkTheme()
 
 
-def apply_ctk_appearance(ctk: Any) -> None:
-    ctk.set_appearance_mode("auto")
+_APPEARANCE_MODE_MAP = {"auto": "system", "light": "Light", "dark": "Dark"}
+
+
+def apply_ctk_appearance(ctk: Any, mode: str = "auto") -> None:
+    ctk.set_appearance_mode(_APPEARANCE_MODE_MAP.get(mode, "system"))
     ctk.set_default_color_theme("blue")
 
 def center_ctk_geometry(root: Any, width: int, height: int) -> None:
diff --git a/ui/ctk_tray_ui.py b/ui/ctk_tray_ui.py
index 8bcdaeb..6d5538e 100644
--- a/ui/ctk_tray_ui.py
+++ b/ui/ctk_tray_ui.py
@@ -146,6 +146,11 @@ def _cfproxy_show_test_results(domain: str, results: dict) -> None:
 
 _INNER_W = 396
 
+_APPEARANCE_OPTIONS = ["Авто", "Светлая", "Тёмная"]
+_APPEARANCE_FROM_CFG = {"auto": "Авто", "light": "Светлая", "dark": "Тёмная"}
+_APPEARANCE_TO_CFG = {"Авто": "auto", "Светлая": "light", "Тёмная": "dark"}
+_APPEARANCE_TO_CTK = {"auto": "system", "light": "Light", "dark": "Dark"}
+
 
 def _entry(ctk, parent, theme, *, var=None, width=0, height=36, radius=10, **kw):
     opts = dict(
@@ -249,6 +254,7 @@ class TrayConfigFormWidgets:
     cfproxy_var: Optional[Any] = None
     cfproxy_priority_var: Optional[Any] = None
     cfproxy_domain_var: Optional[Any] = None
+    appearance_var: Optional[Any] = None
 
 
 def install_tray_config_form(
@@ -272,6 +278,33 @@ def install_tray_config_form(
         header, text=f"v{__version__}",
         font=(theme.ui_font_family, 12),
         text_color=theme.text_secondary, anchor="e",
+    ).pack(side="right", padx=(4, 0))
+    appearance_var = ctk.StringVar(
+        value=_APPEARANCE_FROM_CFG.get(cfg.get("appearance", "auto"), "Авто")
+    )
+
+    def _on_appearance_change(choice: str) -> None:
+        cfg_val = _APPEARANCE_TO_CFG.get(choice, "auto")
+        ctk.set_appearance_mode(_APPEARANCE_TO_CTK[cfg_val])
+
+    ctk.CTkComboBox(
+        header,
+        values=_APPEARANCE_OPTIONS,
+        variable=appearance_var,
+        width=102,
+        height=28,
+        font=(theme.ui_font_family, 12),
+        text_color=theme.text_secondary,
+        fg_color=theme.field_bg,
+        border_color=theme.field_border,
+        button_color=theme.field_border,
+        button_hover_color=theme.text_secondary,
+        dropdown_fg_color=theme.field_bg,
+        dropdown_text_color=theme.text_primary,
+        dropdown_hover_color=theme.field_border,
+        corner_radius=8,
+        state="readonly",
+        command=_on_appearance_change,
     ).pack(side="right")
 
     conn = _config_section(ctk, frame, theme, "Подключение MTProto")
@@ -488,6 +521,7 @@ def install_tray_config_form(
         cfproxy_var=cfproxy_var,
         cfproxy_priority_var=cfproxy_priority_var,
         cfproxy_domain_var=cfproxy_domain_var,
+        appearance_var=appearance_var,
     )
 
 
@@ -572,6 +606,8 @@ def validate_config_form(
         domain = widgets.cfproxy_domain_var.get().strip()
         if domain:
             new_cfg["cfproxy_domain"] = domain
+    if widgets.appearance_var is not None:
+        new_cfg["appearance"] = _APPEARANCE_TO_CFG.get(widgets.appearance_var.get(), "auto")
     return new_cfg
 
 
diff --git a/utils/tray_common.py b/utils/tray_common.py
index f9a60a2..2019c72 100644
--- a/utils/tray_common.py
+++ b/utils/tray_common.py
@@ -401,7 +401,7 @@ _ctk_root: Any = None
 _ctk_root_ready = threading.Event()
 
 
-def ensure_ctk_thread(ctk: Any) -> bool:
+def ensure_ctk_thread(ctk: Any, mode: str = "auto") -> bool:
     global _ctk_root
     if ctk is None:
         return False
@@ -413,7 +413,7 @@ def ensure_ctk_thread(ctk: Any) -> bool:
         from ui.ctk_theme import apply_ctk_appearance, install_tkinter_variable_del_guard
 
         install_tkinter_variable_del_guard()
-        apply_ctk_appearance(ctk)
+        apply_ctk_appearance(ctk, mode)
         _ctk_root = ctk.CTk()
         _ctk_root.withdraw()
         _ctk_root_ready.set()
diff --git a/windows.py b/windows.py
index a047ec5..70a93d3 100644
--- a/windows.py
+++ b/windows.py
@@ -200,7 +200,7 @@ def _on_exit(icon=None, item=None) -> None:
 # settings dialog
 
 def _edit_config_dialog() -> None:
-    if not ensure_ctk_thread(ctk):
+    if not ensure_ctk_thread(ctk, _config.get("appearance", "auto")):
         _show_error("customtkinter не установлен.")
         return
 
@@ -266,7 +266,7 @@ def _show_first_run() -> None:
     ensure_dirs()
     if FIRST_RUN_MARKER.exists():
         return
-    if not ensure_ctk_thread(ctk):
+    if not ensure_ctk_thread(ctk, _config.get("appearance", "auto")):
         FIRST_RUN_MARKER.touch()
         return