Designer Tools Pro provides a suite of features to review and validate app specifications. Whether it be checking your keylines or that shade of blue, you'll definitely want to add this app to your toolkit. Even if you provide redlines, these are a great way to verify each and every pixel.

Grid Overlay - Quickly toggle on-screen grids to check layouts for inconsistent spacing or mis-aligned elements. You can even customize the grid size, grid line and keyline colors.

Mockup Overlay - Display a mockup image over your app. This gives you a high-fidelity opportunity to see how the design spec matches the developed user interface. Choose from portrait or landscape overlays and tune the opacity for an effective comparison. You can also adjust vertical position on mockup image

Color Picker - Use your finger to drag around a loupe magnifier and identity the hex codes of colors at the pixel level you can also tap on hex text to copy it into clipboard.

Disclosure:
The app uses the AccessibilityService API to display a floating popup to enable multitasking.

No data is collected or shared using the AccessibilityService API!

// Option A //

To download Designer Tools Pro mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Designer Tools Pro mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Designer Tools Pro from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Designer Tools Pro in HappyMod App.