Update layout settings and skin parameters across multiple PUML theme files

Author: fknierim

puml-theme-doubleslash-activity.puml

@@ -1,5 +1,7 @@
 !include https://raw.githubusercontent.com/doubleSlashde/umltheme/main/puml-theme-doubleslash-general.puml
 
+!pragma layout smetana
+
 ' Activity
 '=================================================================
 skinparam conditionStyle diamond
@@ -30,6 +32,3 @@ skinparam SwimlaneBorderThickness 1.0
 'skinparam SwimlaneWrapTitleWidth 50
 
 !define format_swimlaneheader(x) \n<b>x\n
-
-
-

puml-theme-doubleslash-class.puml

@@ -1,5 +1,7 @@
 !include https://raw.githubusercontent.com/doubleSlashde/umltheme/main/puml-theme-doubleslash-general.puml
 
+!pragma layout klassviz
+
 'allowmixing 'if flag is set, different diagram types could mixed up
 hide circle
 hide empty members
@@ -30,4 +32,3 @@ skinparam Class {
     FontColor black
     Fontstyle bold
 }
-

puml-theme-doubleslash-system.puml

@@ -1,9 +1,10 @@
 !include https://raw.githubusercontent.com/doubleSlashde/umltheme/main/puml-theme-doubleslash-general.puml
 
+!pragma layout smetana
 left to right direction
 hide stereotypes
 
-skinparam Linetype polyline
+skinparam Linetype ortho
 skinparam ComponentStyle rectangle
 
 skinparam ComponentBorderThickness 0

puml-theme-doubleslash-usecase.puml

@@ -1,6 +1,7 @@
 'Include this theme with:
 !include https://raw.githubusercontent.com/doubleSlashde/umltheme/main/puml-theme-doubleslash-general.puml
 
+!pragma layout smetana
 hide stereotypes
 skinparam padding 2
 left to right direction