feat(theme): add brown and orange background gradients

packages/ui/src/theme/default-values.generated.ts

@@ -18,6 +18,16 @@ export const runtimeThemeDefaults = {
   "--hm-sem-brand-bg-stop-42": "#123328",
   "--hm-sem-brand-bg-stop-78": "#266651",
   "--hm-sem-brand-bg-stop-100": "#205241",
+  "--hm-sem-brown-bg-stop-0": "#352d1d",
+  "--hm-sem-brown-bg-stop-12": "#2f281c",
+  "--hm-sem-brown-bg-stop-42": "#3e3523",
+  "--hm-sem-brown-bg-stop-78": "#897445",
+  "--hm-sem-brown-bg-stop-100": "#604f32",
+  "--hm-sem-orange-bg-stop-0": "#bc4c00",
+  "--hm-sem-orange-bg-stop-12": "#883700",
+  "--hm-sem-orange-bg-stop-42": "#cc5200",
+  "--hm-sem-orange-bg-stop-78": "#f87725",
+  "--hm-sem-orange-bg-stop-100": "#eb5f00",
   "--hm-sem-action-surface-stop-0": "#1f8265",
   "--hm-sem-action-surface-stop-30": "#165c47",
   "--hm-sem-action-surface-stop-65": "#114838",