Frames

The edges of each flying in (zoom out) can be made a bit more distinct by adding a rim ('frame') to it. Several types of frames are offered, from thick to thin, a white edge only or a nice 3D-looking frame. Also here it's a matter of taste what would fit in the dynamic mosaic event. Default is 'Normal'. Each flying picture can be encapsulated with a picture frame. There are a couple of built-in frames:

No frame
Fragile
Normal (default)
Robust
Simple
Simple white
Normal white
Firm white
Use a custom frame

The custom frames are installed with a few examples. The use needs to add his own frames to expand the possibilities. There are a few strict rules to apply before adding a frame to this folder: 'C:\Users\Public\Documents\APP\Dynamic Mosaic\Frames':

The frame must be exactly square in pixel size. The application uses a fully symmetric approach to apply a frame.
The frame must have a transparent inner area. Also symmetrical (top-bootm, left-right).
The frame format must be of .PNG file format. Please use a photoshop quality bitmap editor to cut out the inside pixels and save as .PNG file. In some cases the PNG format is ill-defined and will not show a nice transparent part.
The first found transparent pixels top-left will be the measure for the thickness of final frame: the distance from th left will be used as the symmetrical part on the right; same for the first pixel measured from the top.
The remaining part between the left-top and right-top part (the middel section) will be stretched to match the flying picture. Fr small masks the stretching may get ugly when a certain pattern is used, and then stretched. Please note: the middle part will not repeated like a pattern!
The size of the frame is not enlarged. The custom frame is used as-is, and only the middle part is stretched while the four corner parts are copied to the flying tile. So, in case the tile is 800 pixels in size and the frame 24 (only) pixels the frame will hardly be noticed. And vice versa: a thick frame of 700 pixels in size will almost reduce the flying tile to a small portion while the frame is basically all there is to see. A good size is between 24 (subtle) and 200 (very present).

The pre-installed examples can be helpful to find the right custom frame.

There are a couple of controls elements:

Clicking a frame will select that frame. A red outline is shown in teh thumbnail overview.
When aframe is selected but not square a warning will appear. Because of the way the frame symmetry is used by the application, non-rectangular frames will show unpredictable results.
The drop-down box will allow you to select the frame (or use one of the built-in frames).

Please remember: the selection of the frame will not be saved in the project file, but the selection of the frame drop-down selector will be saved.

Below you will find real size all the built-in frames and one frame in comparison of 200x200 pixels (pre-installed).

From left to right: Fragile, Normal, Robust, Simple, Simple white, Normal white, Firm white, Custom frame