For example, when mousing over the following cells, an enlarged popup image will be displayed.
- Sparklines cell.
- A cell with Embedded graph.
- A cell with Inserted Image from File.
A System Variable @CET is used to control the behavior:
@CET=0, use default size of 250x250
@CET=1 to 29, disable this feature
@CET > 30 is user defined size in pixel, scaled by DPI scale factor