[inspect] add draw entry function

inspect.lua

@@ -34,6 +34,13 @@ local function estimatedHeight()
     return #keys
 end
 
+local function drawLine(termlike, line)
+    termlike.setBackgroundColor(colors.black)
+    termlike.setTextColor(colors.white)
+    termlike.write(line)
+end
+listview.setDrawEntryFunc(drawLine)
+
 
 return {
     name="inspect",