The preset preview shows how a subtitle will be rendered using a specific preset.
It is opened from the presets editor.
Show settings
Displays the panels that allow to modify the displayed content.
Auto fit
If enabled, the sampled image is resized to fit the window.
Show palette
If enabled, displays the color palette. This function works only with remapped images.
Show magnifier
Displays the magnifier.
Text
Allows to modify the sample text.
Subpicture
Allows to specify a image file as subpicture.
Background
Allows to specify a image file as background. Usually a movie screenshot that helps to position the text.
Overlays
Allow to display several guides over the image.