Marker Mate play online

This app aids filmmakers when replacing or adding content to filmed screen devices such as phones or tablets.

Features:
- 4 different markers.
- 4 different background colours.
- Adjustable size and location of markers.
- Screen brightness and sleep override.
- Import and overlay custom images.

Getting started:
After the app starts, you will be presented with a black screen with 5 tracking markers. Press and hold anywhere on the screen for 3 seconds to bring up the settings menu.
Clicking outside of settings will hide the menu.
Tip: Set phone/pad to airplane mode to avoid interruptions.