diff --git a/app/src/main/java/com/simplemobiletools/draw/Constants.java b/app/src/main/java/com/simplemobiletools/draw/Constants.java
index fd6e4e4..6e3696c 100644
--- a/app/src/main/java/com/simplemobiletools/draw/Constants.java
+++ b/app/src/main/java/com/simplemobiletools/draw/Constants.java
@@ -9,7 +9,4 @@ public class Constants {
     public static final String IS_FIRST_RUN = "is_first_run";
     public static final String IS_DARK_THEME = "is_dark_theme";
     public static final String IS_STROKE_WIDTH_BAR_ENABLED = "is_stroke_width_bar_enabled";
-    // canvas
-    public static final int PREVIEW_DOT_STROKE_SIZE = 5;
-    public static final int PREVIEW_DOT_OFFSET_Y = 120;
 }
diff --git a/app/src/main/java/com/simplemobiletools/draw/MyCanvas.java b/app/src/main/java/com/simplemobiletools/draw/MyCanvas.java
index b643288..4b1f2bc 100644
--- a/app/src/main/java/com/simplemobiletools/draw/MyCanvas.java
+++ b/app/src/main/java/com/simplemobiletools/draw/MyCanvas.java
@@ -1,6 +1,7 @@
 package com.simplemobiletools.draw;
 
 import android.content.Context;
+import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Color;
@@ -111,11 +112,12 @@ public class MyCanvas extends View {
     }
 
     private void drawPreviewDot(Canvas canvas) {
+        Resources res = getResources();
         mPaint.setColor(Utils.shouldUseWhite(mPaintOptions.color) ? Color.WHITE : Color.BLACK);
-        mPaint.setStrokeWidth(mPaintOptions.strokeWidth + Constants.PREVIEW_DOT_STROKE_SIZE);
-        canvas.drawPoint(getWidth() / 2, getHeight() - Constants.PREVIEW_DOT_OFFSET_Y, mPaint);
+        mPaint.setStrokeWidth(mPaintOptions.strokeWidth + res.getDimension(R.dimen.preview_dot_stroke_size));
+        canvas.drawPoint(getWidth() / 2, getHeight() - res.getDimension(R.dimen.preview_dot_offset_y), mPaint);
         changePaint(mPaintOptions);
-        canvas.drawPoint(getWidth() / 2, getHeight() - Constants.PREVIEW_DOT_OFFSET_Y, mPaint);
+        canvas.drawPoint(getWidth() / 2, getHeight() - res.getDimension(R.dimen.preview_dot_offset_y), mPaint);
     }
 
     private void changePaint(PaintOptions paintOptions) {
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index fcef010..c48feeb 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -6,6 +6,8 @@
     <dimen name="social_logo">40dp</dimen>
     <dimen name="settings_padding">8dp</dimen>
     <dimen name="stroke_bar_size">150dp</dimen>
+    <dimen name="preview_dot_stroke_size">2dp</dimen>
+    <dimen name="preview_dot_offset_y">50dp</dimen>
 
     <dimen name="normal_text_size">14sp</dimen>
 </resources>