ui: introduce a fresh set of Material3 themes and migrate to them

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

ui/src/main/java/com/wireguard/android/activity/LogViewerActivity.kt

@@ -40,6 +40,7 @@ import com.wireguard.android.R
 import com.wireguard.android.databinding.LogViewerActivityBinding
 import com.wireguard.android.util.DownloadsFileSaver
 import com.wireguard.android.util.ErrorMessages
+import com.wireguard.android.util.resolveAttribute
 import com.wireguard.crypto.KeyPair
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -70,7 +71,7 @@ class LogViewerActivity : AppCompatActivity() {
         yearFormatter.format(Date())
     }
 
-    private val defaultColor by lazy { ResourcesCompat.getColor(resources, R.color.primary_text_color, theme) }
+    private val defaultColor by lazy { ResourcesCompat.getColor(resources, resolveAttribute(com.google.android.material.R.attr.colorOnSurface), theme) }
 
     private val debugColor by lazy { ResourcesCompat.getColor(resources, R.color.debug_tag_color, theme) }
 

ui/src/main/java/com/wireguard/android/fragment/AddTunnelsSheet.kt

@@ -34,10 +34,6 @@ class AddTunnelsSheet : BottomSheetDialogFragment() {
         }
     }
 
-    override fun getTheme(): Int {
-        return R.style.BottomSheetDialogTheme
-    }
-
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         if (savedInstanceState != null) dismiss()
         val view = inflater.inflate(R.layout.add_tunnels_bottom_sheet, container, false)
@@ -76,7 +72,7 @@ class AddTunnelsSheet : BottomSheetDialogFragment() {
             }
         })
         val gradientDrawable = GradientDrawable().apply {
-            setColor(requireContext().resolveAttribute(R.attr.colorBackground))
+            setColor(requireContext().resolveAttribute(com.google.android.material.R.attr.colorSurface))
         }
         view.background = gradientDrawable
     }