I think a simple but effective improvement to LXTask's interface would be when the detailed view is set the the 'More details' button would become 'Less details'.
Actually there's a workaround by translating the button label to the equivalent to '+/- details'.
I just noticed that after pressing the 'more details' button it keeps 'pressed' while the details are expanded and goes back to normal state when pressing it again to hide the extra details. So this means it isn't badly worded actually.
What happens is that with these 'metallic' gtk themes of today this isn't easily noticed. I just noticed it today with an old-style gtk theme.
I'll test it more with other themes to see if I use the original translation again in pt_BR.
Better is to rename this button as 'toggle details'.