Remove ttkbootstrap support

README.md

@@ -25,10 +25,6 @@ uv pip install .                  # install ICRS and dependencies
 uv run icrs                       # launches the GUI
 ```
 The launcher copies Tcl/Tk resources into the virtualenv on first run, so no manual environment tweaks are needed.
-To include the optional ttkbootstrap theme pack:
-```bash
-uv pip install '.[ui]'
-```
 
 ## Workflow
 1. Load an image (`📂`) or a folder (`📁`).

app/gui/__init__.py

@@ -2,13 +2,12 @@
 
 from .color_picker import ColorPickerMixin
 from .exclusions import ExclusionMixin
-from .theme import ThemeMixin, HAS_TTKBOOTSTRAP
+from .theme import ThemeMixin
 from .ui import UIBuilderMixin
 
 __all__ = [
     "ColorPickerMixin",
     "ExclusionMixin",
     "ThemeMixin",
-    "HAS_TTKBOOTSTRAP",
     "UIBuilderMixin",
 ]

app/gui/theme.py

@@ -5,14 +5,6 @@ from __future__ import annotations
 import platform
 from tkinter import ttk
 
-try:
-    import ttkbootstrap as tb  # type: ignore
-
-    HAS_TTKBOOTSTRAP = True
-except Exception:  # pragma: no cover - optional dependency
-    tb = None
-    HAS_TTKBOOTSTRAP = False
-
 try:
     import winreg
 except Exception:  # pragma: no cover - platform-specific
@@ -24,27 +16,12 @@ class ThemeMixin:
 
     theme: str
     style: ttk.Style
-    using_tb: bool
     scale_style: str
 
     def init_theme(self) -> None:
         """Initialise ttk style handling and apply the detected theme."""
-        if HAS_TTKBOOTSTRAP:
-            try:
-                try:
-                    self.root.tk.call("package", "require", "msgcat")  # type: ignore[attr-defined]
-                except Exception:
-                    pass
-                self.style = tb.Style()
-                self.using_tb = True
-            except Exception:
         self.style = ttk.Style()
         self.style.theme_use("clam")
-                self.using_tb = False
-        else:
-            self.style = ttk.Style()
-            self.style.theme_use("clam")
-            self.using_tb = False
 
         self.theme = "light"
         self.apply_theme(self.detect_system_theme())
@@ -54,16 +31,6 @@ class ThemeMixin:
         mode = (mode or "light").lower()
         self.theme = "dark" if mode == "dark" else "light"
 
-        if HAS_TTKBOOTSTRAP:
-            try:
-                theme_name = "darkly" if self.theme == "dark" else "flatly"
-                self.style.theme_use(theme_name)
-            except Exception:
-                pass
-            self.scale_style = (
-                "info.Horizontal.TScale" if self.theme == "dark" else "primary.Horizontal.TScale"
-            )
-        else:
         self.scale_style = "Horizontal.TScale"
 
         if self.theme == "dark":
@@ -77,7 +44,6 @@ class ThemeMixin:
         s = self.style
         s.configure("TFrame", background=bg)
         s.configure("TLabel", background=bg, foreground=fg, font=("Segoe UI", 10))
-        if not HAS_TTKBOOTSTRAP:
         s.configure(
             "TButton", padding=8, relief="flat", background="#e0e0e0", foreground=fg, font=("Segoe UI", 10)
         )
@@ -123,4 +89,4 @@ class ThemeMixin:
         self.update_preview()  # type: ignore[attr-defined]
 
 
-__all__ = ["ThemeMixin", "HAS_TTKBOOTSTRAP"]
+__all__ = ["ThemeMixin"]

pyproject.toml

@@ -10,9 +10,6 @@ dependencies = [
     "pillow>=10.0.0",
 ]
 
-[project.optional-dependencies]
-ui = ["ttkbootstrap>=1.10.0"]
-
 [project.scripts]
 icrs = "app.launcher:main"