diff --git a/docs/migrationGuide.adoc b/docs/migrationGuide.adoc
index 0098088373..8b2d2e594a 100644
--- a/docs/migrationGuide.adoc
+++ b/docs/migrationGuide.adoc
@@ -15,6 +15,13 @@ We've removed the following files, that we already deprecated within the previou
 - `@db-ui/core/sources/css/enterprise/db-ui-core-rollup.scss`
 - `@db-ui/core/sources/css/enterprise/db-ui-core-webpack.scss`
 
+=== Moved "base" files DB UI Core to DB UI Base
+
+The following files including basic styles have been moved from DB UI Core to DB UI Base:
+- source/_patterns/00-base/icons/icons.scss -> @db-ui/base/build/scss/icon/icons.scss
+- source/css/_rollup.assets-paths.scss -> @db-ui/base/build/scss/_rollup.assets-paths.scss
+- source/css/_webpack.assets-paths.scss -> @db-ui/base/build/scss/_webpack.assets-paths.scss
+
 === progress
 
 We've remove the deprecated previous HTML implementation of the label by an `output` element and replaced it by an actual `label` element. Necessary changes:
diff --git a/source/css/_rollup.assets-paths.scss b/source/css/_rollup.assets-paths.scss
deleted file mode 100644
index ea144bb651..0000000000
--- a/source/css/_rollup.assets-paths.scss
+++ /dev/null
@@ -1,4 +0,0 @@
-// If this library is used as an npm dependency, and the source files should be included rather than css, this corrects the paths.
-$icons-path: "@db-ui/core/dist/icons/";
-$images-path: "@db-ui/core/dist/images/";
-$fonts-path: "@db-ui/core/dist/fonts/";
diff --git a/source/css/_webpack.assets-paths.scss b/source/css/_webpack.assets-paths.scss
deleted file mode 100644
index 02e7de82f5..0000000000
--- a/source/css/_webpack.assets-paths.scss
+++ /dev/null
@@ -1,4 +0,0 @@
-// If this library is used as an npm dependency, and the source files should be included rather than css, this corrects the paths.
-$icons-path: "~@db-ui/core/dist/icons/";
-$images-path: "~@db-ui/core/dist/images/";
-$fonts-path: "~@db-ui/core/dist/fonts/";