diff --git a/sys/apps/shell.lua b/sys/apps/shell.lua
index 05978a7..a138fe6 100644
--- a/sys/apps/shell.lua
+++ b/sys/apps/shell.lua
@@ -396,6 +396,12 @@ local config = {
 Config.load('shellprompt', config)
 
 local _colors = config.color
+-- temp
+if not _colors.backgroundColor then
+  _colors.backgroundColor = colors.black
+  _colors.fileColor = colors.white
+end
+
 if not term.isColor() then
 	_colors = { }
 	for k, v in pairs(config.color) do
diff --git a/sys/apps/system/colors.lua b/sys/apps/system/colors.lua
index 3bdefda..cce9559 100644
--- a/sys/apps/system/colors.lua
+++ b/sys/apps/system/colors.lua
@@ -32,6 +32,12 @@ for k, v in pairs(defaults) do
   table.insert(allSettings, { name = k })
 end
 
+-- temp
+if not _colors.backgroundColor then
+  _colors.backgroundColor = colors.black
+  _colors.fileColor = colors.white
+end
+
 local tab = UI.Tab {
 	tabTitle = 'Shell',
   description = 'Shell option',