diff --git a/CHANGES.md b/CHANGES.md
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,11 @@
 # Version History
 
+## 0.3.0.0 (December 1, 2017)
+
+  - New style modifier: `swapFgBg` (Thanks to Sam Tay)
+
+  - `Byline` is now an instance of `MonadTrans` (Thanks to Sam Tay)
+
 ## 0.2.4.0 (March 19, 2017)
 
   - Update dependency bounds
diff --git a/byline.cabal b/byline.cabal
--- a/byline.cabal
+++ b/byline.cabal
@@ -1,6 +1,6 @@
 --------------------------------------------------------------------------------
 name:          byline
-version:       0.2.4.0
+version:       0.3.0.0
 synopsis:      Library for creating command-line interfaces (colors, menus, etc.)
 homepage:      http://github.com/pjones/byline
 bug-reports:   http://github.com/pjones/byline/issues
@@ -12,7 +12,7 @@
 category:      System, User Interfaces
 build-type:    Simple
 stability:     experimental
-tested-with:   GHC == 7.8.4, GHC == 7.10.3, GHC == 8.0.1
+tested-with:   GHC == 7.8.4, GHC == 7.10.3, GHC == 8.0.2
 cabal-version: >=1.18
 description:
   Byline simplifies writing interactive terminal applications by
@@ -73,7 +73,7 @@
     ghc-options: -Werror
 
   build-depends: base          >= 4.7  && < 5.0
-               , ansi-terminal >= 0.6  && < 0.7
+               , ansi-terminal >= 0.6  && < 0.8
                , colour        >= 2.3  && < 2.4
                , containers    >= 0.5  && < 0.6
                , exceptions    >= 0.8  && < 0.9
diff --git a/src/System/Console/Byline.hs b/src/System/Console/Byline.hs
--- a/src/System/Console/Byline.hs
+++ b/src/System/Console/Byline.hs
@@ -75,7 +75,7 @@
          -- This means you can change attributes of the text by using
          -- the following functions along with @mappend@ or the @(<>)@
          -- operator.
-       , fg, bg, bold, underline
+       , fg, bg, bold, underline, swapFgBg
 
          -- * Specifying Colors
        , Color
diff --git a/src/System/Console/Byline/Internal/Byline.hs b/src/System/Console/Byline/Internal/Byline.hs
--- a/src/System/Console/Byline/Internal/Byline.hs
+++ b/src/System/Console/Byline/Internal/Byline.hs
@@ -66,6 +66,9 @@
 newtype Byline m a = Byline {unByline :: ReaderT Env (MaybeT m) a}
   deriving (Functor, Applicative, Monad, MonadReader Env, MonadIO)
 
+instance MonadTrans Byline where
+  lift = liftBase
+
 --------------------------------------------------------------------------------
 -- | Calculate the default rendering modes based on the terminal type.
 defRenderMode :: H.InputT IO (RenderMode, RenderMode)
diff --git a/src/System/Console/Byline/Internal/Render.hs b/src/System/Console/Byline/Internal/Render.hs
--- a/src/System/Console/Byline/Internal/Render.hs
+++ b/src/System/Console/Byline/Internal/Render.hs
@@ -99,10 +99,11 @@
 -- | Convert a modifier into a series of SGR codes.
 modToSGR :: Modifier -> [SGR]
 modToSGR m =
-  catMaybes [ SetColor Foreground Dull <$> modColor modColorFG
-            , SetColor Background Dull <$> modColor modColorBG
-            , SetConsoleIntensity      <$> modIntensity
-            , SetUnderlining           <$> modUnderlining
+  catMaybes [ SetColor Foreground Dull    <$> modColor modColorFG
+            , SetColor Background Dull    <$> modColor modColorBG
+            , SetConsoleIntensity         <$> modIntensity
+            , SetUnderlining              <$> modUnderlining
+            , SetSwapForegroundBackground <$> modSwapForegroundBackground
             ]
 
   where
@@ -118,6 +119,12 @@
     modUnderlining = case modUnderline m of
       Off -> Nothing
       On  -> Just SingleUnderline
+
+    modSwapForegroundBackground :: Maybe Bool
+    modSwapForegroundBackground = case modSwapFgBg m of
+      Off -> Nothing
+      On  -> Just True
+
 
 --------------------------------------------------------------------------------
 -- | Convert modifiers into direct escape sequences for modifiers
diff --git a/src/System/Console/Byline/Internal/Types.hs b/src/System/Console/Byline/Internal/Types.hs
--- a/src/System/Console/Byline/Internal/Types.hs
+++ b/src/System/Console/Byline/Internal/Types.hs
@@ -56,10 +56,11 @@
   , modColorBG   :: OnlyOne Color
   , modBold      :: Status
   , modUnderline :: Status
+  , modSwapFgBg  :: Status
   }
 
 --------------------------------------------------------------------------------
 instance Monoid Modifier where
-  mempty = Modifier mempty mempty mempty mempty
-  mappend (Modifier a b c d) (Modifier a' b' c' d') =
-    Modifier (a <> a') (b <> b') (c <> c') (d <> d')
+  mempty = Modifier mempty mempty mempty mempty mempty
+  mappend (Modifier a b c d e) (Modifier a' b' c' d' e') =
+    Modifier (a <> a') (b <> b') (c <> c') (d <> d') (e <> e')
diff --git a/src/System/Console/Byline/Modifiers.hs b/src/System/Console/Byline/Modifiers.hs
--- a/src/System/Console/Byline/Modifiers.hs
+++ b/src/System/Console/Byline/Modifiers.hs
@@ -17,6 +17,7 @@
        , bg
        , bold
        , underline
+       , swapFgBg
        ) where
 
 --------------------------------------------------------------------------------
@@ -58,3 +59,8 @@
 -- | Produce underlined text.
 underline :: Stylized
 underline = modStylized (mempty {modUnderline = On})
+
+--------------------------------------------------------------------------------
+-- | Produce swapped foreground/background text.
+swapFgBg :: Stylized
+swapFgBg = modStylized (mempty {modSwapFgBg = On})