| Image | Graphics.Vty.Image, Graphics.Vty |
| imageHeight | Graphics.Vty.Image, Graphics.Vty |
| imageWidth | Graphics.Vty.Image, Graphics.Vty |
| initialAssumedState | Graphics.Vty.Output.Interface, Graphics.Vty |
| inlineAttr | Graphics.Vty.Inline |
| inlineHack | Graphics.Vty.Output.Interface, Graphics.Vty |
| InlineM | Graphics.Vty.Inline |
| InlineState | |
| 1 (Type/Class) | Graphics.Vty.Inline |
| 2 (Data Constructor) | Graphics.Vty.Inline |
| inlineUrlsEnabled | Graphics.Vty.Inline |
| Input | |
| 1 (Type/Class) | Graphics.Vty.Input, Graphics.Vty |
| 2 (Data Constructor) | Graphics.Vty.Input, Graphics.Vty |
| InputEvent | Graphics.Vty.Input.Events |
| inputFd | Graphics.Vty.Config, Graphics.Vty |
| inputForConfig | Graphics.Vty.Input, Graphics.Vty |
| inputIface | Graphics.Vty |
| InputMap | Graphics.Vty.Config, Graphics.Vty |
| inputMap | Graphics.Vty.Config, Graphics.Vty |
| installUnicodeWidthTable | Graphics.Vty.UnicodeWidthTable.Install |
| InternalEvent | Graphics.Vty.Input.Events |
| Invalid | Graphics.Vty.Input.Classify.Types |
| isCustomTableReady | Graphics.Vty.UnicodeWidthTable.Install |
| isFocusEvent | Graphics.Vty.Input.Focus |
| isMouseEvent | Graphics.Vty.Input.Mouse |
| iso10646String | Graphics.Vty.Image, Graphics.Vty |
| ISOColor | Graphics.Vty.Attributes.Color, Graphics.Vty.Attributes, Graphics.Vty |
| isShutdown | Graphics.Vty |
| italic | Graphics.Vty.Attributes, Graphics.Vty |