Yup.
Look in your uifiles->sars4casters folder and you should see spells01-05.tga. Copy the spells01-07.tga from the uifiles->default folder and paste them into the sars4caster folder and overwrite the old 01-05. After you do that, copy from gemicons01-03.tga from the default to the sar4casters for full effect.