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GtkLabel — A widget that displays a small to medium amount of text
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GtkImage — A widget displaying an image
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GtkSpinner — Show a spinner animation
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GtkInfoBar — Report important messages to the user
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GtkProgressBar — A widget which indicates progress visually
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GtkLevelBar — A bar that can used as a level indicator
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GtkStatusbar — Report messages of minor importance to the user
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GtkAccelLabel — A label which displays an accelerator key on the right of the text