diff --git a/src/apps/info.ts b/src/apps/info.ts
index 2e69b75..00b7178 100644
--- a/src/apps/info.ts
+++ b/src/apps/info.ts
@@ -25,6 +25,7 @@ export default class SettingsApp implements App {
     win.content.style.flexDirection = 'column'
     win.content.style.justifyContent = 'center'
     win.content.style.alignItems = 'center'
+    win.content.style.background = 'var(--base)'
     win.content.innerHTML = `
         <div>
           <h1 style="margin:0;">FlowOS</h1>
diff --git a/src/apps/music.ts b/src/apps/music.ts
index acc1d89..c7fe8f2 100644
--- a/src/apps/music.ts
+++ b/src/apps/music.ts
@@ -16,6 +16,7 @@ export default class MusicApp implements App {
       height: 300
     })
 
+    win.content.style.background = 'var(--base)'
     win.content.innerHTML = 'hi'
 
     return win
diff --git a/src/apps/settings.ts b/src/apps/settings.ts
index 04567db..42285c2 100644
--- a/src/apps/settings.ts
+++ b/src/apps/settings.ts
@@ -16,6 +16,7 @@ export default class SettingsApp implements App {
       height: 300
     })
 
+    win.content.style.background = 'var(--base)'
     win.content.style.padding = '10px'
     win.content.innerHTML = `
       <h1>Settings</h1>
diff --git a/src/types.ts b/src/types.ts
index 360d0a7..be3293b 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -53,3 +53,7 @@ export interface FlowWindowConfig {
 export interface Apps {
   [key: string]: App
 }
+
+export interface LoadedApp extends App {
+  builtin: boolean
+}