Grid hierarchy cell icons

[Ivan]

Hello!
Since you changed the classes for displaying table icons, tell us how to change these terrible + and - to other icons?
Previously, the code was working:
.k-hierarchy-cell .k-icon.k-i-plus::before {
     content: "\e005";
     cursor: pointer;
     font-size: 1.3em
}

.k-hierarchy-cell .k-icon.k-i-minus::before {
     content: "\e006";
     cursor: pointer;
     font-size: 1.3em
     color: rgb(var(--primary-a));
     background-color: rgb(var(--primary-d));
     border-radius: 4px
}