Basic focus issue - solved!

[David Bovill]

on mouseEnter
   set the lockText of me to false
end mouseEnter

on mouseLeave
   set the lockText of me to true
end mouseLeave

on openField
     set the backgroundColor of me to red
     --pass focusIn
end openField

on focusIn
     set the backgroundColor of me to red
     --pass focusIn
end focusIn

on focusOut
     set the backgroundColor of me to green
     --pass focusOut
end focusOut

on closeField
     set the backgroundColor of me to green
     --pass closeField
end closeField

Not figured out why exactly - but adding the mouseEnter/leave lock/ 
unlock bits - gets you the result you want - editable fields that you  
can handle their appearance as the focus changes.

Just create a new stack - add one plain field - paste the scripts  
above - clone the field as many times as you want. Not tested in  
groups and complex situations - still happy for now.