@@ -178,9 +178,16 @@ data Config =
178178 , termWidthMaps :: [(String, FilePath)]
179179 -- ^ Terminal width map files.
180180 , allowCustomUnicodeWidthTables :: Maybe Bool
181− -- ^ Whether to permit custom Unicode width table loading.
182− -- 'Just False' indicates that table loading should not be
183− -- performed. Other values permit table loading.
181+ -- ^ Whether to permit custom Unicode width table loading by
182+ -- 'Graphics.Vty.mkVty'. @'Just' 'False'@ indicates that
183+ -- table loading should not be performed. Other values permit
184+ -- table loading.
185+ --
186+ -- If a table load is attempted and fails, information
187+ -- about the failure will be logged to the debug log if the
188+ -- configuration specifies one. If no custom table is loaded
189+ -- (or if a load fails), the built-in character width table
190+ -- will be used.
184191 }
185192 deriving (Show, Eq)
186193