After importing a 2D image into Modest3D, you can use the imported image by simply double clicking the setup node in the Storyboarder.
In the setup node, right click and hover over UI. That will reveal a expandable menu, select Image.
That will create an image place holder in both the editor window and the player window. Select the Image in the setup node and look at the properties tab. You will notice a set of property menus, for now we are only interested in Image property menu. Scroll in the properties till you find it.
To get the imported image to populate in the image place holder, drag the imported image from the Assets Tab to the image property menu under the Image asset slot in the image above. Toggle the use actual size button to use the actual size of the image.
After hitting Simulate, you will see the image in the player window, to see the image in the editor window hit the UI button in the editor window. Now, lets look at the other property menus.
2D menu: controls the 2D properties of your image.
Relative Coordinates will edited the data to be relative to the size of screen.
World hide blend Distance - will make the image fade in and out.
Appearance menu, Use the appearance menu to edit the appearance of the image.