Add theme changer option to navigation components for enhanced customization

Author: vquilon

examples/framework/multi_page.py

@@ -49,7 +49,8 @@ def run():
         allow_url_nav=False, hide_streamlit_markers=False, use_banner_images=None,
         banner_spacing=None, clear_cross_page_sessions=True, session_params=None,
         use_loader=True, within_fragment=within_fragment,
-        login_info_session_key=LOGGING_SESSION_KEY
+        login_info_session_key=LOGGING_SESSION_KEY,
+        navigation_theme_changer=True
     )
 
 

streamlit_plugins/components/navbar/__init__.py

@@ -755,6 +755,7 @@ def st_navigation(
     native_way=False,
     input_styles: str | None = None,
     themes_data: list[dict]| None = None,
+    theme_changer: bool = True,
     key="NavigationComponent",
 ) -> StreamlitPage:
     if "navigation_prev_page_id" not in st.session_state:
@@ -859,6 +860,7 @@ def st_navigation(
         sticky_nav=sticky_nav,
         input_styles=input_styles,
         themes_data=themes_data,
+        theme_changer=theme_changer,
         key=key,
     )
     st.session_state["navigation_force_page_id"] = None

streamlit_plugins/framework/multilit/multilit.py

@@ -129,7 +129,8 @@ def __init__(
         session_params=None,
         verbose=False,
         within_fragment=False,
-        login_info_session_key="logged_in"
+        login_info_session_key="logged_in",
+        navigation_theme_changer=True
     ):
         """
         A class to create an Multi-app Streamlit application. This class will be the host application for multiple applications that are added after instancing.
@@ -216,6 +217,7 @@ def __init__(
         self._navbar_sticky = navbar_sticky
         self._nav_item_count = 0
         self._use_st_navigation_navbar = use_st_navigation_navbar
+        self._navigation_theme_changer = navigation_theme_changer
         self._hide_streamlit_markers = hide_streamlit_markers
         self._navbar_theme = navbar_theme or DEFAULT_THEMES
 
@@ -577,7 +579,8 @@ def _standalone_navbar(self, natives_page_data, login_page, account_page, settin
             settings_page=settings_page,
             native_way=self._use_st_navigation_navbar,
             input_styles=styles,
-            themes_data=self._navbar_theme
+            themes_data=self._navbar_theme,
+            theme_changer=self._navigation_theme_changer
         )
         if self.cross_session_clear and st.session_state["preserve_state"]:
             self._clear_session_values()