Change colours of buttons when clearing survey responses

Hi

Is it possible to change the colours and symbols on the buttons (see attachments) when clearing survey responses and also the text of these?

For instance, I would like to change these to "Back to survey" and "Clear Response" and change the colours so that red is associated with cancel if possible.

How do I do this?

Apologies if the answer lies around the forum somewhere, I had a search, but couldn't find the answer to my question.

Thanks!

hi
quite easy by using / customizing themes but you need some html/css knowledge
see manual.limesurvey.org/New_Template_System_in_LS3.x