diff --git a/packages/theme/api-report.md b/packages/theme/api-report.md
index 043d7d37ac..772e868635 100644
--- a/packages/theme/api-report.md
+++ b/packages/theme/api-report.md
@@ -53,6 +53,10 @@ export type BackstagePaletteAdditions = {
   };
   bursts: {
     fontColor: string;
+    slackChannelText: string;
+    backgroundColor: {
+      default: string;
+    };
     gradient: {
       linear: string;
     };