Dialer: InCallDialpad: Make light numbers visible

* Currently the dialed digits are colored google_grey_300, which is
  not really visible on light background
* Replace with dialer_theme_color_light which is also used on normal
  dialpad and works just fine

Fixes: https://gitlab.com/LineageOS/issues/android/-/issues/6283
Change-Id: I11f7a87b13457a17995b0b46a221f1d3a5009372
diff --git a/java/com/android/incallui/theme/res/values/styles.xml b/java/com/android/incallui/theme/res/values/styles.xml
index f46e85d..bfedd14 100644
--- a/java/com/android/incallui/theme/res/values/styles.xml
+++ b/java/com/android/incallui/theme/res/values/styles.xml
@@ -43,7 +43,7 @@
     <item name="dialpad_key_numbers_size">@dimen/incall_dialpad_key_numbers_size</item>
     <item name="dialpad_end_key_spacing">@dimen/incall_end_call_spacing</item>
     <item name="dialpad_elevation">10dp</item>
-    <item name="dialpad_text_color">@color/dialer_dark_secondary_text_color</item>
+    <item name="dialpad_text_color">@color/dialer_theme_color_light</item>
     <item name="dialpad_text_color_primary">@color/dialer_theme_color_light</item>
     <item name="dialpad_text_color_secondary">@color/dialer_secondary_text_color</item>
   </style>