diff --git a/src/inline-script/inline-script.js b/src/inline-script/inline-script.js
index 6064dce..1d084a2 100644
--- a/src/inline-script/inline-script.js
+++ b/src/inline-script/inline-script.js
@@ -4,7 +4,7 @@
 // the build process and write it to checksum.js.
 
 import { testHasLocalStorageOnce } from '../routes/_utils/testStorage'
-import { DEFAULT_LIGHT_THEME, DEFAULT_THEME, switchToTheme } from '../routes/_utils/themeEngine'
+import { INLINE_THEME, DEFAULT_THEME, switchToTheme } from '../routes/_utils/themeEngine'
 import { basename } from '../routes/_api/utils'
 import { onUserIsLoggedOut } from '../routes/_actions/onUserIsLoggedOut'
 
@@ -30,7 +30,7 @@ let theme = (currentInstance &&
   localStorage.store_instanceThemes &&
   safeParse(localStorage.store_instanceThemes)[safeParse(localStorage.store_currentInstance)]) ||
   DEFAULT_THEME
-if (theme !== DEFAULT_LIGHT_THEME) {
+if (theme !== INLINE_THEME) {
   // switch theme ASAP to minimize flash of default theme
   switchToTheme(theme)
 }
diff --git a/src/routes/_utils/themeEngine.js b/src/routes/_utils/themeEngine.js
index 715804b..e7ed2eb 100644
--- a/src/routes/_utils/themeEngine.js
+++ b/src/routes/_utils/themeEngine.js
@@ -2,8 +2,9 @@ let meta = process.browser && document.getElementById('theThemeColor')
 let offlineStyle = process.browser && document.getElementById('theOfflineStyle')
 let prefersDarkTheme = process.browser && window.matchMedia('(prefers-color-scheme: dark)').matches
 
-export const DEFAULT_LIGHT_THEME = 'default'
-export const DEFAULT_DARK_THEME = 'ozark'
+export const INLINE_THEME = 'default' // theme that does not require external CSS
+export const DEFAULT_LIGHT_THEME = 'default' // theme that is shown by default
+export const DEFAULT_DARK_THEME = 'ozark' // theme that is shown for prefers-color-scheme:dark
 export const DEFAULT_THEME = prefersDarkTheme ? DEFAULT_DARK_THEME : DEFAULT_LIGHT_THEME
 
 function getExistingThemeLink () {
@@ -38,7 +39,7 @@ function loadCSS (href) {
 export function switchToTheme (themeName = DEFAULT_THEME) {
   let themeColor = window.__themeColors[themeName]
   meta.content = themeColor || window.__themeColors[DEFAULT_THEME]
-  if (themeName !== DEFAULT_LIGHT_THEME) {
+  if (themeName !== INLINE_THEME) {
     loadCSS(`/theme-${themeName}.css`)
   } else {
     resetExistingTheme()