How to search and replace the right way

When I search for a term which is NOT in the document, the search field turns black completely.
When I search for a term which is contained in several lines just below each other, it replaces more than one occurrence at the same time.

How am I supposed to use the search and replace facility?

Comments

Eww, that search box gets

Eww, that search box gets messed up if there's nothing found. Why on earth is that happening? It's just a text box. It should be going red, actually, to indicate "not found".

As for search and replace, REPLACE should only replace the one instance that is currently selected. ALL should replace everything. I can't get REPLACE to do more than just the one instance...

I tried it again and again

I tried it again and again and again.
It works like it is supposed.
Thanks for your effort.

BTW I am loving UECIDE more and more!!!!!!