spell check notification attribute editing

I would like to be able to edit the attributes of the "NON-HIGHLIGHTING THIN RED ZIGZAG with TRANSPARENT-BACKGROUND" that appears when you misspell a word.   In general  it is not clearly visible with certain themes, and not scaled appropriately with small and large text, so I think manually adjustments are in order.   Maybe the style (underline, zigzag, dotted), pixel width, (whether or not it highlights the text, or changes the font color of the misspelled words/characters, or the background of the underline element or text.