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

• skinparam backgroundColor transparent

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.

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
    }

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

You can use either standard_color_name or RGB code. transparent can only be used for background of the image.

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 system.

Text alignement can be set up to left, right or center.

<uml t=“skinparam”> skinparam sequenceMessageAlign center Alice → Bob : Hi Alice → Bob : This is very long </uml>

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

<uml t=“skinparam_001”> 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 </uml>

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