theme!

gui.py

@@ -10,6 +10,7 @@ import ai_client
 from ai_client import ProviderError
 import shell_runner
 import session_logger
+import theme
 
 CONFIG_PATH = Path("config.toml")
 PROVIDERS = ["gemini", "anthropic"]
@@ -459,6 +460,7 @@ class App:
             "provider": self.current_provider,
             "model":    self.current_model,
         }
+        theme.save_to_config(self.config)
 
     def _do_generate(self) -> tuple[str, Path, list]:
         self._flush_to_config()
@@ -792,6 +794,93 @@ class App:
             self.disc_entries.append({"role": "AI", "content": resp})
             self._rebuild_disc_list()
 
+
+    # ------------------------------------------------------------ theme
+
+    def cb_palette_changed(self, sender, app_data):
+        theme.apply(app_data, self._read_colour_overrides())
+        self._update_status(f"palette: {app_data}")
+
+    def cb_apply_font(self):
+        path = dpg.get_value("theme_font_path").strip()
+        size = dpg.get_value("theme_font_size")
+        theme.apply_font(path, size)
+        self._update_status(f"font applied: {path or '(default)'} @{size}px")
+
+    def cb_browse_font(self):
+        root = hide_tk_root()
+        p = filedialog.askopenfilename(
+            title="Select Font",
+            filetypes=[("TrueType / OpenType", "*.ttf *.otf"), ("All", "*.*")],
+        )
+        root.destroy()
+        if p:
+            dpg.set_value("theme_font_path", p)
+            self.cb_apply_font()
+
+    def cb_scale_changed(self, sender, app_data):
+        theme.set_scale(round(app_data, 2))
+
+    def _read_colour_overrides(self) -> dict:
+        return {}
+
+    def _build_theme_window(self):
+        t_cfg = self.config.get("theme", {})
+        cur_palette   = t_cfg.get("palette",   "DPG Default")
+        cur_font_path = t_cfg.get("font_path", "")
+        cur_font_size = float(t_cfg.get("font_size", 14.0))
+        cur_scale     = float(t_cfg.get("scale",     1.0))
+
+        with dpg.window(
+            label="Theme",
+            tag="win_theme",
+            pos=(416, 516),
+            width=400,
+            height=280,
+            no_close=True,
+        ):
+            dpg.add_text("Palette")
+            dpg.add_combo(
+                tag="theme_palette",
+                items=theme.PALETTE_NAMES,
+                default_value=cur_palette,
+                width=-1,
+                callback=self.cb_palette_changed,
+            )
+            dpg.add_separator()
+            dpg.add_text("Font")
+            with dpg.group(horizontal=True):
+                dpg.add_input_text(
+                    tag="theme_font_path",
+                    default_value=cur_font_path,
+                    hint="Path to .ttf / .otf  (blank = built-in)",
+                    width=-148,
+                )
+                dpg.add_button(label="Browse##font", callback=self.cb_browse_font)
+            with dpg.group(horizontal=True):
+                dpg.add_text("Size (px)")
+                dpg.add_input_float(
+                    tag="theme_font_size",
+                    default_value=cur_font_size,
+                    min_value=8.0,
+                    max_value=64.0,
+                    step=1.0,
+                    width=90,
+                    format="%.0f",
+                )
+                dpg.add_button(label="Apply Font", callback=self.cb_apply_font)
+            dpg.add_separator()
+            dpg.add_text("UI Scale (DPI)")
+            dpg.add_slider_float(
+                tag="theme_scale",
+                default_value=cur_scale,
+                min_value=0.5,
+                max_value=3.0,
+                width=-1,
+                callback=self.cb_scale_changed,
+                format="%.2f",
+            )
+
     def _build_ui(self):
 
         with dpg.window(
@@ -999,6 +1088,8 @@ class App:
             with dpg.child_window(tag="comms_scroll", height=-1, border=False, horizontal_scrollbar=True):
                 pass
 
+        self._build_theme_window()
+
     def run(self):
         dpg.create_context()
         dpg.configure_app(docking=True, docking_space=True, init_file="dpg_layout.ini")
@@ -1007,6 +1098,8 @@ class App:
         dpg.show_viewport()
         dpg.maximize_viewport()
         self._build_ui()
+        theme.load_from_config(self.config)
+        self._rebuild_disc_list()
         self._fetch_models(self.current_provider)
 
         while dpg.is_dearpygui_running():
@@ -1037,3 +1130,4 @@ if __name__ == "__main__":
 
 
 
+