If you want to use your own icon rather than the Stonefield Query icon () for Stonefield Query's dialogs, specify the name of an ICO file for the Icon File property.

Note that this doesn't change the icon used for SFQuery.EXE or for the shortcut on the user's desktop. You can use a resource editor to specify a different icon for SFQuery.EXE or specify the desired icon for the shortcut in the Properties dialog for the shortcut or in the installation script used to create a setup executable. Assuming you're using the Generating Setup function to generate an Inno Setup script file, edit the ISS file it generates and change the desktop task in the [Icons] section, adding an IconFilename setting. Here's an example:

Name: {commondesktop}\{#MyAppName}; Filename: {app}\SFQuery.exe;
  WorkingDir: {app}; Tasks: desktopicon; IconFilename: {app}\SomeFile.ico

You also need to include the icon file in the [Files] section, so add a line such as:

Source: C:\SomeFolder\SomeFile.ico; DestDir: {app};

This setting is only available in the Ultimate version of Studio.