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Control Panel

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 Control Panel



Novice Mode




Expert Mode






The control panel is where you adjust settings, enable / disable file formats and adjust global options.


The most important thing to keep in mind when using the control panel is that it uses a state machine methodology in order to make changes.

Put simply, this means that when you make changes to a selected set of file formats / extensions and once happy with the changes; you apply them to the system using the Apply  button (bottom right corner).


If you make a mistake before applying changes you can use the Undo  button back to the most recently applied state.


The basic concept of making changes is:

oWork from top left to bottom right. Think of the thumbnail generation filtering down from each option to the next.

oSelect the level of change you wish to make using the "Apply To"  button (top left).

oSelect all formats or the file format / extension you wish to make a change to in the Format group. This gives you the required granularity for subsequent changes required.

oOptionally change performance options group to disable large files and improve thumbnail generation speed.

oChange thumbnail appearance group options such as transparency control, embedded thumbnail extraction, filtering and thumbnail adornment, that will be applied to the selected set of formats / extensions.

oWhen changes are made to an option, a small Apply icon  is overlaid on the bottom right of the option to indicate which options have been modified and are ready to apply.

oEnable / disable and override thumbnail icon overlays as desired in the Icon group.

oWhen in File format or All formats mode, any option that has multiple states has an indeterminate state icon overlaid on the top right.

oApply  to the system and optionally refresh open Explorer windows by holding the Ctrl key.


The global group options are not part of the individual thumbnail state machine generation options and are applied immediately when changed. Apply is not required.


The bottom row shelf icons contain tools such as language selection, thumbnail cache clearing, plugins, on-line support queries, checking for updates, network and registration options as well as the undo and apply buttons.





The control panel can be opened in a number of ways.

Double clicking or by using the context menu of the Tray Application

Using the context menu of the Shell Extension

Using the entries in the system control panel.

Vista, Windows 7 or later - Thumbnail Options in 'Appearance and Personalization' or 'Programs'

XP - Thumbnail Options in 'Appearance and Themes' or 'Performance and Maintenance'



Help can be opened for a specific item by either using the window help icon (? next to the close button) or by pressing F1 over a control.



Basic Options


  Always on Top Pin

Use this to make the control panel a top most window so it is always above all other windows whilst open.


   Window Mode

Toggle between Novice and Expert modes. Once you are familiar with what each control does you can switch into Expert mode in order to free up some desktop space.


  Debug Log

Hold Ctrl and the the Window Size button switches to debug log mode, enabling you to toggle logging for helping track down bugs or issues with the developer. For performance reasons normally keep this disabled (default).



 Facebook (removed in v4.6.2)

Opens the MysticThumbs facebook page in your favorite web browser.


  Sound / Volume

Buttons and combo boxes play sounds depending on their state to help recognize their state and function. There are four levels of volume or you can mute the sound.



Displays the application credits.



Enable tutorial mode.

Tutorial mode helps train you in how to use the control panel. Read the tutorial and move through it as you desire whilst learning how each function works and how they work together to fine tune your thumbnail experience.


  Tooltip help

Enable or disable the tooltip balloon help with this button.


 Help, Local and on-line

Press to enable context sensitive help. Then press a control to open the local or on-line help guide for the selected control.

Hold ✲ (Ctrl) key to toggle Local and on-line help mode.



Closes the control panel. You will be prompted about unsaved changes.


Version information


The control panel shows the currently installed version of MysticThumbs and machine type (x86 or x64). If there is any kind of error the version will be reported as *ERROR* indicating you may need to do a repair install or re-install.



MysticCoder hyperlink


Provides a convenient web hyperlink that will open up the MysticThumbs facebook page on the internet.


The amount of thumbnails generated is also displayed here so you know just how useful MysticThumbs is.




Apply to Options

File Formats and Extensions


Embedded Thumbnails


Icon Overlay

Other Options

Global Options



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