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# Factorio Prototype Docs Version 2.0.7

## ChangeRecipeProductivityModifier :: struct

Inherits from BaseModifier

## Properties

- default
- sorted

type | :: `"change-recipe-productivity"` |
use_icon_overlay_constant optional | :: bool | If `false`, do not draw the small "constant" icon over the technology effect icon.
If `false`, do not draw the small "constant" icon over the technology effect icon.
recipe | :: RecipeID |
change | :: EffectValue |

Inherited from BaseModifier

icons optional | :: array[IconData] | Can't be an empty array.
Can't be an empty array.
icon optional | :: FileName | Path to the icon file. [...]
Path to the icon file. [...]
icon_size optional | :: SpriteSizeType | The size of the square icon, in pixels. [...]
The size of the square icon, in pixels. [...]
hidden optional | :: bool |

change | :: EffectValue |
recipe | :: RecipeID |
type | :: `"change-recipe-productivity"` |
use_icon_overlay_constant optional | :: bool | If `false`, do not draw the small "constant" icon over the technology effect icon.
If `false`, do not draw the small "constant" icon over the technology effect icon.

Inherited from BaseModifier

hidden optional | :: bool |
icon optional | :: FileName | Path to the icon file. [...]
Path to the icon file. [...]
icon_size optional | :: SpriteSizeType | The size of the square icon, in pixels. [...]
The size of the square icon, in pixels. [...]
icons optional | :: array[IconData] | Can't be an empty array.
Can't be an empty array.

## Properties

### type :: `"change-recipe-productivity"`

### use_icon_overlay_constant :: bool optional

Default: `true`

If `false`, do not draw the small "constant" icon over the technology effect icon.

### recipe :: RecipeID

### change :: EffectValue

Type used in

- Modifier