chore: minor improvement layout

app/src/main/java/com/example/myapplication/ui/chart/ChartFragment.kt

 package com.example.myapplication.ui.chart
 
 import android.os.Bundle
+import android.util.TypedValue
 import androidx.fragment.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
@@ -79,8 +80,9 @@ class ChartFragment : Fragment() {
                     dataSet.valueTextColor = ContextCompat.getColor(requireContext(), R.color.white)
                     setEntryLabelColor(ContextCompat.getColor(requireContext(), R.color.white))
                     setEntryLabelTextSize(16f)
-                    setBackgroundColor(ContextCompat.getColor(requireContext(), R.color.black))
-                    setHoleColor(ContextCompat.getColor(requireContext(), R.color.black))
+                    setHoleColor(TypedValue().apply {
+                        requireContext().theme.resolveAttribute(androidx.appcompat.R.attr.colorPrimary, this, true)
+                    }.data)
                     setUsePercentValues(true)
                     animateXY(1000, 1000)
                     invalidate()

app/src/main/res/layout/fragment_add_transaction.xml

@@ -11,7 +11,7 @@
         android:id="@+id/header"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:background="@color/black"
+        android:background="?attr/colorPrimary"
         android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
         tools:ignore="MissingConstraints">
 
@@ -84,7 +84,7 @@
             android:layout_height="wrap_content"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@+id/textView"
-            android:textColor="@color/white" />
+            android:textColor="?attr/colorAccent" />
 
         <TextView
             android:id="@+id/tvPriceLabel"
@@ -103,7 +103,7 @@
             android:layout_height="wrap_content"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@+id/textView"
-            android:textColor="@color/white"
+            android:textColor="?attr/colorAccent"
             android:hint="@string/hint_tiPrice"
             android:textColorHint="@color/gray"/>
 

app/src/main/res/layout/fragment_edit_transaction.xml

@@ -81,7 +81,7 @@
                 android:id="@+id/tiTitleEdit"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:textColor="@color/white" />
+                android:textColor="?attr/colorAccent" />
 
             <TextView
                 android:id="@+id/tvPriceLabel"
@@ -96,7 +96,7 @@
                 android:id="@+id/tiPriceEdit"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:textColor="@color/white"
+                android:textColor="?attr/colorAccent"
                 android:hint="@string/hint_tiPrice"
                 android:textColorHint="@color/gray"/>
 
@@ -154,7 +154,7 @@
                     android:maxLines="2"
                     android:ellipsize="end"
                     android:textSize="16sp"
-                    android:textColor="@color/white"/>
+                    android:textColor="?attr/colorAccent"/>
             </LinearLayout>
             <LinearLayout
                 android:layout_width="match_parent"