diff --git a/ci/release/changelogs/next.md b/ci/release/changelogs/next.md
index 5480ca65c9..85e2c6c186 100644
--- a/ci/release/changelogs/next.md
+++ b/ci/release/changelogs/next.md
@@ -9,6 +9,9 @@
 - Sequence diagram: The spacing between self-referential edges and regular edges is uniform [#2043](https://github.com/terrastruct/d2/pull/2043)
 - Compiler: Error on multi-line labels in `sql_table` shapes [#2057](https://github.com/terrastruct/d2/pull/2057)
 - Sequence diagram: Image shape actors can use spans and notes [#2056](https://github.com/terrastruct/d2/issues/2056)
+- Themes [#2065](https://github.com/terrastruct/d2/pull/2065):
+  - new theme `Dark Berry Blue` (`205`), intended as dark variant of `Mixed Berry Blue` (`5`).
+  - changed id of `Dark Flagship Terrastruct` (`203`) to mirror the ID of `Flagship Terrastruct` (`3`), improving theme discoverability.
 
 #### Bugfixes ⛑️
 
diff --git a/d2themes/d2themescatalog/catalog.go b/d2themes/d2themescatalog/catalog.go
index 72cf8d10f9..a7da6cb6c8 100644
--- a/d2themes/d2themescatalog/catalog.go
+++ b/d2themes/d2themescatalog/catalog.go
@@ -30,6 +30,7 @@ var LightCatalog = []d2themes.Theme{
 var DarkCatalog = []d2themes.Theme{
 	DarkMauve,
 	DarkFlagshipTerrastruct,
+	DarkBerryBlue,
 }
 
 func Find(id int64) d2themes.Theme {
diff --git a/d2themes/d2themescatalog/dark_berry_blue.go b/d2themes/d2themescatalog/dark_berry_blue.go
new file mode 100644
index 0000000000..fd974205cf
--- /dev/null
+++ b/d2themes/d2themescatalog/dark_berry_blue.go
@@ -0,0 +1,25 @@
+package d2themescatalog
+
+import "oss.terrastruct.com/d2/d2themes"
+
+var DarkBerryBlue = d2themes.Theme{
+	ID:   205,
+	Name: "Dark berry blue",
+	Colors: d2themes.ColorPalette{
+		Neutrals: d2themes.DarkNeutral,
+
+		B1: "#E5F3FF",
+		B2: "#BCDDFB",
+		B3: "#77AFE3",
+		B4: "#3363DD",
+		B5: "#1F46B7",
+		B6: "#203586",
+
+		AA2: "#DACEFB",
+		AA4: "#A169D3",
+		AA5: "#6649B5",
+
+		AB4: "#9F7ED1",
+		AB5: "#BA69A6",
+	},
+}
diff --git a/d2themes/d2themescatalog/dark_flagship_terrastruct.go b/d2themes/d2themescatalog/dark_flagship_terrastruct.go
index 210c37c953..77d13f6d64 100644
--- a/d2themes/d2themescatalog/dark_flagship_terrastruct.go
+++ b/d2themes/d2themescatalog/dark_flagship_terrastruct.go
@@ -3,7 +3,7 @@ package d2themescatalog
 import "oss.terrastruct.com/d2/d2themes"
 
 var DarkFlagshipTerrastruct = d2themes.Theme{
-	ID:   201,
+	ID:   203,
 	Name: "Dark Flagship Terrastruct",
 	Colors: d2themes.ColorPalette{
 		Neutrals: d2themes.DarkNeutral,