a customer desires all the icons on buttons to be hidden.

It appears, from code similar to this in all .jsp's ( <pwm: if
test="showIcons"> that there should be some way to "hideIcons"
======
<pwm:if test="showCancel">
<button style="visibility:hidden;" type="button" name="button"
class="btn" id="button_cancel"
onclick="PWM_MAIN.handleFormCancel();return false">
<pwm:if test="showIcons"><span class="btn-icon fa
fa-backward"></span></pwm:if>
<pwmisplay key="Button_Cancel"/>
</button>
======

Is it possible to globally disable the display of the icons on buttons?
If so, how?