Adds "Version" option in Settings; pulls git branch or hash in local dev

diff --git a/src/seedsigner/controller.py b/src/seedsigner/controller.py
index 1e2f6d4..a151d3f 100644
--- a/src/seedsigner/controller.py
+++ b/src/seedsigner/controller.py
@@ -1,4 +1,5 @@
 import logging
+import os
 import time
 import traceback
 
@@ -21,6 +22,9 @@ from seedsigner.views.view import Destination
 logger = logging.getLogger(__name__)
 
 
+VERSION = "0.8.6"
+
+
 
 class BackStack(list[Destination]):
     def __repr__(self):
@@ -100,8 +104,6 @@ class Controller(Singleton):
         rather than at the top in order avoid circular imports.
     """
 
-    VERSION = "0.8.6"
-
     # Declare class member vars with type hints to enable richer IDE support throughout
     # the code.
     _storage: SeedStorage = None   # TODO: Rename "storage" to something more indicative of its temp, in-memory state
@@ -475,3 +477,27 @@ class Controller(Singleton):
             exception_msg,
         ]
         return Destination(UnhandledExceptionView, view_args={"error": error}, clear_history=True)
+
+
+    def get_display_version(self) -> str:
+        """
+            Returns a user-friendly version string for display in the UI.
+        """
+        name = f"v{VERSION}"
+        if Settings.HOSTNAME == Settings.SEEDSIGNER_OS:
+            return name
+        
+        # We're in local dev; pull info from .git/HEAD if we can
+        git_HEAD_path = os.path.join(os.getcwd(), "..", ".git", "HEAD")
+
+        if os.path.exists(git_HEAD_path):
+            with open(git_HEAD_path, "r") as f:
+                git_ref = f.read().strip()
+                if git_ref.startswith("ref:"):
+                    # get the branch name
+                    name = git_ref.split("/")[-1]
+                else:
+                    # get the commit hash
+                    name = git_ref[:7]
+
+        return name
diff --git a/src/seedsigner/gui/screens/settings_screens.py b/src/seedsigner/gui/screens/settings_screens.py
index 48cdc7d..9d26cc0 100644
--- a/src/seedsigner/gui/screens/settings_screens.py
+++ b/src/seedsigner/gui/screens/settings_screens.py
@@ -310,6 +310,44 @@ class DonateScreen(BaseTopNavScreen):
 
 
 
+@dataclass
+class VersionScreen(BaseTopNavScreen):
+    version: str = None
+
+    def __post_init__(self):
+        self.title = _("Version")
+        super().__post_init__()
+
+        font_name = GUIConstants.FIXED_WIDTH_FONT_NAME
+        font_size = GUIConstants.get_top_nav_title_font_size() + 6
+        font = Fonts.get_font(font_name, font_size)
+        (left, char_height, char_width, bottom) = font.getbbox("X", anchor="ls")
+
+        if len(self.version) * char_width > self.canvas_width - 2*GUIConstants.EDGE_PADDING:
+            max_chars_width = int((self.canvas_width - 2*GUIConstants.EDGE_PADDING) / char_width)
+            # Add as many line breaks as needed for the version string to fit
+            wrapped_version = []
+            for i in range(0, len(self.version), max_chars_width):
+                if i + max_chars_width < len(self.version):
+                    wrapped_version.append(self.version[i:i+max_chars_width])
+                else:
+                    wrapped_version.append(self.version[i:])
+            self.version = "\n".join(wrapped_version)
+        
+        # Center the version vertically
+        char_height *= -1  # due to the "ls" (baseline) anchor, height is negative
+        screen_y = int((self.canvas_height - self.top_nav.height) / 2) + self.top_nav.height - char_height*len(wrapped_version)
+
+        self.components.append(TextArea(
+            text=self.version,
+            font_name=font_name,
+            font_size=font_size,
+            font_color=GUIConstants.ACCENT_COLOR,
+            screen_y=screen_y,
+        ))
+
+
+
 @dataclass
 class SettingsQRConfirmationScreen(ButtonListScreen):
     config_name: str = None
diff --git a/src/seedsigner/views/screensaver.py b/src/seedsigner/views/screensaver.py
index 8b2970d..c8c51c7 100644
--- a/src/seedsigner/views/screensaver.py
+++ b/src/seedsigner/views/screensaver.py
@@ -97,13 +97,17 @@ class OpeningSplashScreen(LogoScreen):
 
         # Display version num below SeedSigner logo
         font = Fonts.get_font(GUIConstants.get_body_font_name(), GUIConstants.get_top_nav_title_font_size())
-        version = f"v{controller.VERSION}"
+        version = controller.get_display_version()
 
         # The logo png is 240x240, but the actual logo is 70px tall, vertically centered
         logo_height = 70
         version_x = int(self.renderer.canvas_width/2)
         version_y = int(self.canvas_height/2) + int(logo_height/2) + logo_offset_y + GUIConstants.COMPONENT_PADDING
-        self.renderer.draw.text(xy=(version_x, version_y), text=version, font=font, fill=GUIConstants.ACCENT_COLOR, anchor="mt")
+        version_max_chars = 20
+        self.renderer.draw.text(xy=(version_x, version_y), text=version[:version_max_chars], font=font, fill=GUIConstants.ACCENT_COLOR, anchor="mt")
+        if len(version) > version_max_chars:
+            # Squeeze a second version display line in if needed
+            self.renderer.draw.text(xy=(version_x, version_y + GUIConstants.get_top_nav_title_font_size()), text=version[version_max_chars:], font=font, fill=GUIConstants.ACCENT_COLOR, anchor="mt")
 
         if not self.renderer.is_screenshot_generator:
             self.renderer.show_image()
diff --git a/src/seedsigner/views/settings_views.py b/src/seedsigner/views/settings_views.py
index cbf66e0..df03e43 100644
--- a/src/seedsigner/views/settings_views.py
+++ b/src/seedsigner/views/settings_views.py
@@ -17,6 +17,7 @@ class SettingsMenuView(View):
     HARDWARE = ButtonOption("Hardware", right_icon_name=SeedSignerIconConstants.CHEVRON_RIGHT)
     IO_TEST = ButtonOption("I/O test")
     DONATE = ButtonOption("Donate")
+    VERSION = ButtonOption("Version")
 
     def __init__(self, visibility: str = SettingsConstants.VISIBILITY__GENERAL, selected_attr: str = None, initial_scroll: int = 0):
         super().__init__()
@@ -49,6 +50,7 @@ class SettingsMenuView(View):
 
             button_data.append(self.IO_TEST)
             button_data.append(self.DONATE)
+            button_data.append(self.VERSION)
 
         elif self.visibility == SettingsConstants.VISIBILITY__ADVANCED:
             title = _("Advanced")
@@ -96,6 +98,9 @@ class SettingsMenuView(View):
 
         elif button_data[selected_menu_num] == self.DONATE:
             return Destination(DonateView)
+        
+        elif button_data[selected_menu_num] == self.VERSION:
+            return Destination(VersionView)
 
         elif settings_entries[selected_menu_num].attr_name == SettingsConstants.SETTING__LOCALE:
             return Destination(LocaleSelectionView)
@@ -315,3 +320,18 @@ class DonateView(View):
         self.run_screen(settings_screens.DonateScreen)
 
         return Destination(SettingsMenuView)
+
+
+
+class VersionView(View):
+    def run(self):
+        from seedsigner.controller import Controller
+        controller = Controller.get_instance()
+        version = controller.get_display_version()
+
+        self.run_screen(
+            settings_screens.VersionScreen,
+            version=version
+        )
+
+        return Destination(SettingsMenuView)
\ No newline at end of file