diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@
 Brick changelog
 ---------------
 
+0.64.2
+------
+
+Bug fixes:
+ * `Brick.Themes.saveTheme` now correctly saves background colors (#338)
+ * `Brick.Widgets.List.listMoveToEnd` now uses the correct destination
+   index (#337)
+
 0.64.1
 ------
 
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -78,6 +78,7 @@
 | [`brewsage`](https://github.com/gerdreiss/brewsage#readme) | A TUI for Homebrew |
 | [`sandwich`](https://codedownio.github.io/sandwich/) | A test framework with a TUI interface |
 | [`youbrick`](https://github.com/florentc/youbrick) | A feed aggregator and launcher for Youtube channels |
+| [`swarm`](https://github.com/byorgey/swarm/) | A 2D programming and resource gathering game |
 
 These third-party packages also extend `brick`:
 
diff --git a/brick.cabal b/brick.cabal
--- a/brick.cabal
+++ b/brick.cabal
@@ -1,5 +1,5 @@
 name:                brick
-version:             0.64.1
+version:             0.64.2
 synopsis:            A declarative terminal user interface library
 description:
   Write terminal user interfaces (TUIs) painlessly with 'brick'! You
diff --git a/src/Brick/Focus.hs b/src/Brick/Focus.hs
--- a/src/Brick/Focus.hs
+++ b/src/Brick/Focus.hs
@@ -1,7 +1,5 @@
 -- | This module provides a type and functions for handling focus rings
 -- of values.
---
--- This interface is experimental.
 module Brick.Focus
   ( FocusRing
   , focusRing
diff --git a/src/Brick/Forms.hs b/src/Brick/Forms.hs
--- a/src/Brick/Forms.hs
+++ b/src/Brick/Forms.hs
@@ -3,10 +3,7 @@
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE CPP #-}
 {-# LANGUAGE ScopedTypeVariables #-}
--- | Note - This API is experimental and will probably change. Please
--- try it out! Feedback is very much appreciated, and your patience in
--- the face of breaking API changes is also appreciated! It's also worth
--- bearing in mind that this API is designed to support a narrow range
+-- | Note - this API is designed to support a narrow (but common!) set
 -- of use cases. If you find that you need more customization than this
 -- offers, then you will need to consider building your own layout and
 -- event handling for input fields.
diff --git a/src/Brick/Themes.hs b/src/Brick/Themes.hs
--- a/src/Brick/Themes.hs
+++ b/src/Brick/Themes.hs
@@ -405,7 +405,7 @@
 attrToCustom :: Attr -> CustomAttr
 attrToCustom a =
     CustomAttr { customFg    = Just $ attrForeColor a
-               , customBg    = Just $ attrForeColor a
+               , customBg    = Just $ attrBackColor a
                , customStyle = case attrStyle a of
                    SetTo s -> Just s
                    _       -> Nothing
diff --git a/src/Brick/Widgets/List.hs b/src/Brick/Widgets/List.hs
--- a/src/Brick/Widgets/List.hs
+++ b/src/Brick/Widgets/List.hs
@@ -253,7 +253,7 @@
 listMoveToEnd :: (Foldable t, Splittable t)
               => GenericList n t e
               -> GenericList n t e
-listMoveToEnd l = listMoveTo (length $ listElements l) l
+listMoveToEnd l = listMoveTo (max 0 $ length (listElements l) - 1) l
 
 -- | The top-level attribute used for the entire list.
 listAttr :: AttrName