Previously, the code for edit buttons was
<button class="ametys-front-edition-button"></button>
<button class="ametys-front-edition-button"></button>
<button class="ametys-front-edition-button"></button>
Now it is
<button class="ametys-front-edition-button"><span class="ametys-front-edition-button-text">Modifier</span></button>
<button class="ametys-front-edition-button"><span class="ametys-front-edition-button-text">Modifier</span></button>
<button class="ametys-front-edition-button"><span class="ametys-front-edition-button-text">Modifier</span></button>
This means that text is added to the button, which you can hide, for example, with CSS
.ametys-front-edition-button-text { display: none; }
.ametys-front-edition-button-text { display: none; }
.ametys-front-edition-button-text { display: none; }