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Skinparam command

You can change colors and font of the drawing using the skinparam command.

Example:

skinparam backgroundColor transparent

Important: skinparam is being phased out, see comments in issue#1464. It is still supported for simple cases (and for backward compatibility), but users should migrate to style, which supports more complex cases.

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Usage

You can use this command :

• In the diagram definition, like any other commands,
• In an included file,
• In a configuration file, provided in the command line or the ANT task.

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Nested

To avoid repetition, it is possible to nest definition. So the following definition :

skinparam xxxxParam1 value1
skinparam xxxxParam2 value2
skinparam xxxxParam3 value3
skinparam xxxxParam4 value4

is strictly equivalent to:

skinparam xxxx {
    Param1 value1
    Param2 value2
    Param3 value3
    Param4 value4
}

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Black and White

You can force the use of a black&white output using skinparam monochrome true command.

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@startuml skinparam monochrome true actor User participant "First Class" as A participant "Second Class" as B participant "Last Class" as C User -> A: DoWork activate A A -> B: Create Request activate B B -> C: DoWork activate C C --> B: WorkDone destroy C B --> A: Request Created deactivate B A --> User: Done deactivate A @enduml

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Shadowing

You can disable the shadowing using the skinparam shadowing false command.

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@startuml left to right direction skinparam shadowing<<no_shadow>> false skinparam shadowing<<with_shadow>> true actor User (Glowing use case) <<with_shadow>> as guc (Flat use case) <<no_shadow>> as fuc User -- guc User -- fuc @enduml

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Reverse colors

You can force the use of a black&white output using skinparam monochrome reverse command. This can be useful for black background environment.

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@startuml skinparam monochrome reverse actor User participant "First Class" as A participant "Second Class" as B participant "Last Class" as C User -> A: DoWork activate A A -> B: Create Request activate B B -> C: DoWork activate C C --> B: WorkDone destroy C B --> A: Request Created deactivate B A --> User: Done deactivate A @enduml

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Colors

You can use either standard color name or RGB code.

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@startuml colors @enduml

transparent can only be used for background of the image.

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Font color, name and size

You can change the font for the drawing using xxxFontColor, xxxFontSize and xxxFontName parameters.

Example:

skinparam classFontColor red
skinparam classFontSize 10
skinparam classFontName Aapex

You can also change the default font for all fonts using skinparam defaultFontName.

Example:

skinparam defaultFontName Aapex

Please note the fontname is highly system dependent, so do not over use it, if you look for portability. Helvetica and Courier should be available on all systems.

A lot of parameters are available. You can list them using the following command:

java -jar plantuml.jar -language

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Text Alignment

Text alignment can be set to left, right or center in skinparam sequenceMessageAlign. You can also use direction or reverseDirection values to align text depending on arrow direction.

Param name	Default value	Comment
sequenceMessageAlign	left	Used for messages in sequence diagrams
sequenceReferenceAlign	center	Used for ref over in sequence diagrams

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@startuml skinparam sequenceMessageAlign center Alice -> Bob : Hi Bob -> Alice : This is very long @enduml

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@startuml skinparam sequenceMessageAlign right Alice -> Bob : Hi Bob -> Alice : This is very long @enduml

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@startuml skinparam sequenceMessageAlign direction Alice -> Bob : Hi Bob -> Alice: Hi @enduml

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Examples

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@startuml skinparam backgroundColor #EEEBDC skinparam handwritten true skinparam sequence { ArrowColor DeepSkyBlue ActorBorderColor DeepSkyBlue LifeLineBorderColor blue LifeLineBackgroundColor #A9DCDF ParticipantBorderColor DeepSkyBlue ParticipantBackgroundColor DodgerBlue ParticipantFontName Impact ParticipantFontSize 17 ParticipantFontColor #A9DCDF ActorBackgroundColor aqua ActorFontColor DeepSkyBlue ActorFontSize 17 ActorFontName Aapex } actor User participant "First Class" as A participant "Second Class" as B participant "Last Class" as C User -> A: DoWork activate A A -> B: Create Request activate B B -> C: DoWork activate C C --> B: WorkDone destroy C B --> A: Request Created deactivate B A --> User: Done deactivate A @enduml

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@startuml skinparam handwritten true skinparam actor { BorderColor black FontName Courier BackgroundColor<< Human >> Gold } skinparam usecase { BackgroundColor DarkSeaGreen BorderColor DarkSlateGray BackgroundColor<< Main >> YellowGreen BorderColor<< Main >> YellowGreen ArrowColor Olive } User << Human >> :Main Database: as MySql << Application >> (Start) << One Shot >> (Use the application) as (Use) << Main >> User -> (Start) User --> (Use) MySql --> (Use) @enduml

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@startuml skinparam roundcorner 20 skinparam class { BackgroundColor PaleGreen ArrowColor SeaGreen BorderColor SpringGreen } skinparam stereotypeCBackgroundColor YellowGreen Class01 "1" *-- "many" Class02 : contains Class03 o-- Class04 : aggregation @enduml

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@startuml skinparam interface { backgroundColor RosyBrown borderColor orange } skinparam component { FontSize 13 BackgroundColor<<Apache>> LightCoral BorderColor<<Apache>> #FF6655 FontName Courier BorderColor black BackgroundColor gold ArrowFontName Impact ArrowColor #FF6655 ArrowFontColor #777777 } () "Data Access" as DA [Web Server] << Apache >> DA - [First Component] [First Component] ..> () HTTP : use HTTP - [Web Server] @enduml

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@startuml [AA] <<static lib>> [BB] <<shared lib>> [CC] <<static lib>> node node1 node node2 <<shared node>> database Production skinparam component { backgroundColor<<static lib>> DarkKhaki backgroundColor<<shared lib>> Green } skinparam node { borderColor Green backgroundColor Yellow backgroundColor<<shared node>> Magenta } skinparam databaseBackgroundColor Aqua @enduml

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List of all skinparam parameters

You can use -language on the command line or generate a "diagram" with a list of all the skinparam parameters using :

• help skinparams
• skinparameters

Command Line: -language command

Since the documentation is not always up to date, you can have the complete list of parameters using this command:

java -jar plantuml.jar -language

Command: help skinparams

That will give you the following result, from this page (code of this command): CommandHelpSkinparam.java

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@startuml help skinparams @enduml

Command: skinparameters

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@startuml skinparameters @enduml

All Skin Parameters on the Ashley's PlantUML Doc

You can also view each skinparam parameters with its results displayed at the page All Skin Parameters of Ashley's PlantUML Doc:

• https://plantuml-documentation.readthedocs.io/en/latest/formatting/all-skin-params.html.