diff --git a/themes/puml-theme-amiga.puml b/themes/puml-theme-amiga.puml
new file mode 100644
index 000000000..99a78c407
--- /dev/null
+++ b/themes/puml-theme-amiga.puml
@@ -0,0 +1,175 @@
+''
+'' A white on blue theme based on Amiga Workbench 1.x
+'' https://en.wikipedia.org/wiki/Workbench_(AmigaOS)#Workbench_1.x
+''
+'' Original Author: Matthew Leather
+''
+
+!$THEME = "amiga"
+
+!$BLACK  = "#000121"
+!$BLUE   = "#0B58A8"
+!$ORANGE = "#FDA325"
+!$RED    = "#DB252B"
+!$WHITE  = "#FFFFFF"
+
+!$BGCOLOR = $BLUE
+!$FGCOLOR = $WHITE
+
+!ifndef $FONT_NAME
+  !$FONT_NAME = "Verdana"
+!endif
+
+!ifndef $FONT_NAME_MONOSPACED
+  !$FONT_NAME_MONOSPACED = "Courier"
+!endif
+
+<style>
+  root {
+    BackgroundColor $BGCOLOR
+    FontColor $FGCOLOR
+    FontName $FONT_NAME
+    HyperLinkColor $ORANGE
+    LineColor $FGCOLOR
+    LineThickness 1
+    Margin 5
+  }
+  caption {
+    LineThickness 0
+  }
+  footer {
+    LineThickness 0
+  }
+  groupHeader {
+    BackgroundColor $FGCOLOR
+    FontColor $BGCOLOR
+    FontStyle bold
+  }
+  header {
+    LineThickness 0
+  }
+  node {
+    MaximumWidth 300
+  }
+  referenceHeader {
+    BackgroundColor $FGCOLOR
+    FontColor $BGCOLOR
+    FontStyle bold
+  }
+  separator {
+    BackgroundColor $FGCOLOR
+    FontColor $BGCOLOR
+    FontStyle bold
+  }
+  title {
+    FontSize 22
+    LineThickness 0
+  }
+</style>
+
+skinparam ArrowLollipopColor $FGCOLOR
+skinparam BackgroundColor $BGCOLOR
+skinparam DefaultFontName $FONT_NAME
+skinparam DefaultMonospacedFontName $FONT_NAME_MONOSPACED
+skinparam LifelineStrategy nosolid
+skinparam ParticipantPadding 10
+skinparam SequenceLifeLineBorderColor $FGCOLOR
+skinparam Shadowing false
+skinparam UseBetaStyle true
+
+skinparam Activity {
+  BackgroundColor $BGCOLOR
+  BarColor $FGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Boundary {
+  FontColor $FGCOLOR
+}
+skinparam Box {
+  Padding 5
+}
+skinparam CircledCharacter {
+  FontColor $BGCOLOR
+  FontName $FONT_NAME_MONOSPACED
+  Radius 9
+}
+skinparam Class {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassAttribute {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassStereotype {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Footer {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Header {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Hyperlink {
+  Color $ORANGE
+}
+skinparam IconPackage {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPrivate {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconProtected {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPublic {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam Note {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Package {
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam State {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeA {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeC {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeE {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeI {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeN {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam UseCaseStereoType {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
diff --git a/themes/puml-theme-blueprint.puml b/themes/puml-theme-blueprint.puml
new file mode 100644
index 000000000..0835cb20a
--- /dev/null
+++ b/themes/puml-theme-blueprint.puml
@@ -0,0 +1,154 @@
+''
+'' A white on blue theme based on the Blueprint reproduction process
+'' https://en.wikipedia.org/wiki/Blueprint
+''
+'' Original Author: Matthew Leather
+''
+
+!$THEME = "blueprint"
+
+!$BGCOLOR = "#003153"
+!$FGCOLOR = "#D9D3D0"
+
+!ifndef $FONT_NAME
+  !$FONT_NAME = "Verdana"
+!endif
+
+!ifndef $FONT_NAME_MONOSPACED
+  !$FONT_NAME_MONOSPACED = "Courier"
+!endif
+
+<style>
+  root {
+    BackgroundColor $BGCOLOR
+    FontColor $FGCOLOR
+    FontName $FONT_NAME
+    HyperLinkColor $FGCOLOR
+    LineColor $FGCOLOR
+    LineThickness 1
+    Margin 5
+  }
+  caption {
+    LineThickness 0
+  }
+  footer {
+    LineThickness 0
+  }
+  header {
+    LineThickness 0
+  }
+  node {
+    MaximumWidth 300
+  }
+  title {
+    FontSize 22
+    LineThickness 0
+  }
+</style>
+
+skinparam ArrowLollipopColor $FGCOLOR
+skinparam BackgroundColor $BGCOLOR
+skinparam DefaultFontName $FONT_NAME
+skinparam DefaultMonospacedFontName $FONT_NAME_MONOSPACED
+skinparam LifelineStrategy nosolid
+skinparam ParticipantPadding 10
+skinparam SequenceLifeLineBorderColor $FGCOLOR
+skinparam Shadowing false
+skinparam UseBetaStyle true
+
+skinparam Activity {
+  BackgroundColor $BGCOLOR
+  BarColor $FGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Boundary {
+  FontColor $FGCOLOR
+}
+skinparam Box {
+  Padding 5
+}
+skinparam CircledCharacter {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME_MONOSPACED
+  Radius 9
+}
+skinparam Class {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassAttribute {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassStereotype {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Footer {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Header {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Hyperlink {
+  Color $FGCOLOR
+}
+skinparam IconPackage {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPrivate {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconProtected {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPublic {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam Note {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Package {
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam State {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeA {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeC {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeE {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeI {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeN {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam UseCaseStereoType {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
diff --git a/themes/puml-theme-crt-amber.puml b/themes/puml-theme-crt-amber.puml
new file mode 100644
index 000000000..fcf432cdf
--- /dev/null
+++ b/themes/puml-theme-crt-amber.puml
@@ -0,0 +1,177 @@
+''
+'' An orange on black theme based on monochrome CRT monitors
+''
+'' (The colors came from https://superuser.com/a/1206781)
+''
+'' Original Author: Matthew Leather
+''
+
+!$THEME = "crt-amber"
+
+!$DARK_AMBER  = "#FFB000"
+!$LIGHT_AMBER = "#FFCC00"
+
+!$BGCOLOR = "#282828"
+!$FGCOLOR = $DARK_AMBER
+
+!ifndef $FONT_NAME
+  !$FONT_NAME = "Verdana"
+!endif
+
+!ifndef $FONT_NAME_MONOSPACED
+  !$FONT_NAME_MONOSPACED = "Courier"
+!endif
+
+<style>
+  root {
+    BackgroundColor $BGCOLOR
+    FontColor $FGCOLOR
+    FontName $FONT_NAME
+    HyperLinkColor $LIGHT_AMBER
+    LineColor $FGCOLOR
+    LineThickness 1
+    Margin 5
+  }
+  box {
+    LineStyle 12-18
+    LineThickness 3
+  }
+  caption {
+    LineThickness 0
+  }
+  footer {
+    LineThickness 0
+  }
+  groupHeader {
+    BackgroundColor $FGCOLOR
+    FontColor $BGCOLOR
+    FontStyle bold
+  }
+  header {
+    LineThickness 0
+  }
+  node {
+    MaximumWidth 300
+  }
+  referenceHeader {
+    BackgroundColor $FGCOLOR
+    FontColor $BGCOLOR
+    FontStyle bold
+  }
+  separator {
+    BackgroundColor $FGCOLOR
+    FontColor $BGCOLOR
+    FontStyle bold
+  }
+  title {
+    FontSize 22
+    LineThickness 0
+  }
+</style>
+
+skinparam ArrowLollipopColor $FGCOLOR
+skinparam BackgroundColor $BGCOLOR
+skinparam DefaultFontName $FONT_NAME
+skinparam DefaultMonospacedFontName $FONT_NAME_MONOSPACED
+skinparam LifelineStrategy solid
+skinparam ParticipantPadding 10
+skinparam SequenceLifeLineBorderColor $FGCOLOR
+skinparam Shadowing false
+skinparam UseBetaStyle true
+
+skinparam Activity {
+  BackgroundColor $BGCOLOR
+  BarColor $FGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Boundary {
+  FontColor $FGCOLOR
+}
+skinparam Box {
+  Padding 5
+}
+skinparam CircledCharacter {
+  FontColor $BGCOLOR
+  FontName $FONT_NAME_MONOSPACED
+  Radius 9
+}
+skinparam Class {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassAttribute {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassStereotype {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Footer {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Header {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Hyperlink {
+  Color $LIGHT_AMBER
+}
+skinparam IconPackage {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPrivate {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconProtected {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPublic {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam Note {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Package {
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam State {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeA {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeC {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeE {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeI {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeN {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam UseCaseStereoType {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
diff --git a/themes/puml-theme-crt-green.puml b/themes/puml-theme-crt-green.puml
new file mode 100644
index 000000000..7b6769df2
--- /dev/null
+++ b/themes/puml-theme-crt-green.puml
@@ -0,0 +1,174 @@
+''
+'' A green on black theme based on monochrome CRT monitors
+''
+'' (The colors came from https://superuser.com/a/1206781)
+''
+'' Original Author: Matthew Leather
+''
+
+!$THEME = "crt-green"
+
+!$BGCOLOR = "#282828"
+!$FGCOLOR = "#33FF33"
+
+!ifndef $FONT_NAME
+  !$FONT_NAME = "Verdana"
+!endif
+
+!ifndef $FONT_NAME_MONOSPACED
+  !$FONT_NAME_MONOSPACED = "Courier"
+!endif
+
+<style>
+  root {
+    BackgroundColor $BGCOLOR
+    FontColor $FGCOLOR
+    FontName $FONT_NAME
+    HyperLinkColor $FGCOLOR
+    LineColor $FGCOLOR
+    LineThickness 1
+    Margin 5
+  }
+  box {
+    LineStyle 12-18
+    LineThickness 3
+  }
+  caption {
+    LineThickness 0
+  }
+  footer {
+    LineThickness 0
+  }
+  groupHeader {
+    BackgroundColor $FGCOLOR
+    FontColor $BGCOLOR
+    FontStyle bold
+  }
+  header {
+    LineThickness 0
+  }
+  node {
+    MaximumWidth 300
+  }
+  referenceHeader {
+    BackgroundColor $FGCOLOR
+    FontColor $BGCOLOR
+    FontStyle bold
+  }
+  separator {
+    BackgroundColor $FGCOLOR
+    FontColor $BGCOLOR
+    FontStyle bold
+  }
+  title {
+    FontSize 22
+    LineThickness 0
+  }
+</style>
+
+skinparam ArrowLollipopColor $FGCOLOR
+skinparam BackgroundColor $BGCOLOR
+skinparam DefaultFontName $FONT_NAME
+skinparam DefaultMonospacedFontName $FONT_NAME_MONOSPACED
+skinparam LifelineStrategy solid
+skinparam ParticipantPadding 10
+skinparam SequenceLifeLineBorderColor $FGCOLOR
+skinparam Shadowing false
+skinparam UseBetaStyle true
+
+skinparam Activity {
+  BackgroundColor $BGCOLOR
+  BarColor $FGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Boundary {
+  FontColor $FGCOLOR
+}
+skinparam Box {
+  Padding 5
+}
+skinparam CircledCharacter {
+  FontColor $BGCOLOR
+  FontName $FONT_NAME_MONOSPACED
+  Radius 9
+}
+skinparam Class {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassAttribute {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassStereotype {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Footer {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Header {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Hyperlink {
+  Color $FGCOLOR
+}
+skinparam IconPackage {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPrivate {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconProtected {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPublic {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam Note {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Package {
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam State {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeA {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeC {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeE {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeI {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeN {
+  BackgroundColor $FGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam UseCaseStereoType {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
diff --git a/themes/puml-theme-mimeograph.puml b/themes/puml-theme-mimeograph.puml
new file mode 100644
index 000000000..9ee9fbf22
--- /dev/null
+++ b/themes/puml-theme-mimeograph.puml
@@ -0,0 +1,154 @@
+''
+'' A purple on grey theme based on the Mimeograph reproduction process
+'' https://en.wikipedia.org/wiki/Mimeograph
+''
+'' Original Author: Matthew Leather
+''
+
+!$THEME = "mimeograph"
+
+!$BGCOLOR = "#D9D3D0"
+!$FGCOLOR = "#9275B6"
+
+!ifndef $FONT_NAME
+  !$FONT_NAME = "Verdana"
+!endif
+
+!ifndef $FONT_NAME_MONOSPACED
+  !$FONT_NAME_MONOSPACED = "Courier"
+!endif
+
+<style>
+  root {
+    BackgroundColor $BGCOLOR
+    FontColor $FGCOLOR
+    FontName $FONT_NAME
+    HyperLinkColor $FGCOLOR
+    LineColor $FGCOLOR
+    LineThickness 1
+    Margin 5
+  }
+  caption {
+    LineThickness 0
+  }
+  footer {
+    LineThickness 0
+  }
+  header {
+    LineThickness 0
+  }
+  node {
+    MaximumWidth 300
+  }
+  title {
+    FontSize 22
+    LineThickness 0
+  }
+</style>
+
+skinparam ArrowLollipopColor $FGCOLOR
+skinparam BackgroundColor $BGCOLOR
+skinparam DefaultFontName $FONT_NAME
+skinparam DefaultMonospacedFontName $FONT_NAME_MONOSPACED
+skinparam LifelineStrategy nosolid
+skinparam ParticipantPadding 10
+skinparam SequenceLifeLineBorderColor $FGCOLOR
+skinparam Shadowing false
+skinparam UseBetaStyle true
+
+skinparam Activity {
+  BackgroundColor $BGCOLOR
+  BarColor $FGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Boundary {
+  FontColor $FGCOLOR
+}
+skinparam Box {
+  Padding 5
+}
+skinparam CircledCharacter {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME_MONOSPACED
+  Radius 9
+}
+skinparam Class {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassAttribute {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassStereotype {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Footer {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Header {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Hyperlink {
+  Color $FGCOLOR
+}
+skinparam IconPackage {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPrivate {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconProtected {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPublic {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam Note {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Package {
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam State {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeA {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeC {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeE {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeI {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeN {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam UseCaseStereoType {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
diff --git a/themes/puml-theme-plain.puml b/themes/puml-theme-plain.puml
new file mode 100644
index 000000000..be1ead83d
--- /dev/null
+++ b/themes/puml-theme-plain.puml
@@ -0,0 +1,162 @@
+''
+'' A simple black on white theme (with blue hyperlinks)
+''
+'' Original Author: Matthew Leather
+''
+
+!$THEME = "plain"
+
+!if %not(%variable_exists("$BGCOLOR"))
+  !$BGCOLOR = "white"
+!endif
+
+!if %not(%variable_exists("$FGCOLOR"))
+  !$FGCOLOR = "black"
+!endif
+
+!if %not(%variable_exists("$HYPERLINK_COLOR"))
+  !$HYPERLINK_COLOR = "blue"
+!endif
+
+!ifndef $FONT_NAME
+  !$FONT_NAME = "Verdana"
+!endif
+
+!ifndef $FONT_NAME_MONOSPACED
+  !$FONT_NAME_MONOSPACED = "Courier"
+!endif
+
+<style>
+  root {
+    BackgroundColor $BGCOLOR
+    FontColor $FGCOLOR
+    FontName $FONT_NAME
+    HyperLinkColor $HYPERLINK_COLOR
+    LineColor $FGCOLOR
+    LineThickness 1
+    Margin 5
+  }
+  caption {
+    LineThickness 0
+  }
+  footer {
+    LineThickness 0
+  }
+  header {
+    LineThickness 0
+  }
+  node {
+    MaximumWidth 300
+  }
+  title {
+    FontSize 22
+    LineThickness 0
+  }
+</style>
+
+skinparam ArrowLollipopColor $FGCOLOR
+skinparam BackgroundColor $BGCOLOR
+skinparam DefaultFontName $FONT_NAME
+skinparam DefaultMonospacedFontName $FONT_NAME_MONOSPACED
+skinparam LifelineStrategy nosolid
+skinparam ParticipantPadding 10
+skinparam SequenceLifeLineBorderColor $FGCOLOR
+skinparam Shadowing false
+skinparam UseBetaStyle true
+
+skinparam Activity {
+  BackgroundColor $BGCOLOR
+  BarColor $FGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Boundary {
+  FontColor $FGCOLOR
+}
+skinparam Box {
+  Padding 5
+}
+skinparam CircledCharacter {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME_MONOSPACED
+  Radius 9
+}
+skinparam Class {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassAttribute {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam ClassStereotype {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Footer {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Header {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Hyperlink {
+  Color $HYPERLINK_COLOR
+}
+skinparam IconPackage {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPrivate {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconProtected {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam IconPublic {
+  Color $FGCOLOR
+  BackgroundColor $BGCOLOR
+}
+skinparam Note {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam Package {
+  BorderColor $FGCOLOR
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}
+skinparam State {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeA {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeC {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeE {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeI {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam StereotypeN {
+  BackgroundColor $BGCOLOR
+  BorderColor $FGCOLOR
+}
+skinparam UseCaseStereoType {
+  FontColor $FGCOLOR
+  FontName $FONT_NAME
+}