system/ui: update keyboard enter key (#35275)

* system/ui: update keyboard enter key

- use arrow-right icon
- use primary color

* format

system/ui/widgets/keyboard.py

@@ -1,13 +1,13 @@
 import pyray as rl
 from openpilot.system.ui.lib.application import gui_app, FontWeight
-from openpilot.system.ui.lib.button import gui_button
+from openpilot.system.ui.lib.button import ButtonStyle, gui_button
 from openpilot.system.ui.lib.inputbox import InputBox
 from openpilot.system.ui.lib.label import gui_label
 
 # Constants for special keys
 CONTENT_MARGIN = 50
 BACKSPACE_KEY = "<-"
-ENTER_KEY = "Enter"
+ENTER_KEY = "->"
 SPACE_KEY = "  "
 SHIFT_KEY = "↑"
 SHIFT_DOWN_KEY = "↓"
@@ -59,6 +59,7 @@ class Keyboard:
       BACKSPACE_KEY: gui_app.texture("icons/backspace.png", 60, 60),
       SHIFT_KEY: gui_app.texture("icons/shift.png", 60, 60),
       SHIFT_DOWN_KEY: gui_app.texture("icons/arrow-down.png", 60, 60),
+      ENTER_KEY: gui_app.texture("icons/arrow-right.png", 60, 60),
     }
 
   @property
@@ -103,7 +104,7 @@ class Keyboard:
         result = -1
         if key in self._key_icons:
           texture = self._key_icons[key]
-          result = gui_button(key_rect, "", icon=texture, is_enabled=is_enabled)
+          result = gui_button(key_rect, "", icon=texture, button_style=ButtonStyle.PRIMARY if key == ENTER_KEY else ButtonStyle.NORMAL, is_enabled=is_enabled)
         else:
           result = gui_button(key_rect, key, is_enabled=is_enabled)