What files generate pop-up errors in Bitrix?

Question

1C-Bitrix

Where are pop-up windows edited in bitrex?
When the form is submitted, a notification <font class="notetext"> < font >or appears <font class="errortext"> </ font >.
What files are involved in generating these messages?
I want to change classes / tags, and in some of them there are incomprehensible brackets ", which I also want to remove. This is especially true <font class="errortext">.

Answer 1

The output of these messages is in the component template file form.result.new