CreateDialog creates a gtk dialog with no buttons.

CreateDialogOkCancel creates a gtk dialog with Ok and Cancel buttons.

CreateDialogOneButton creates a gtk dialog with one button.

GetSudoUser finds the real user that launched the installer.

SetButton creates and styles a new gtk Button.

SetLabel creates and styles a new gtk Label.

ButtonSpacing is generic spacing between buttons.

StartEndMargin is the start and end margin.

TopBottomMargin is the top and bottom margin.

10 seconds.

LoopWaitDuration is a common loop wait duration used in pages.