dlsite-sell-price-color.js

$('li.search_result_img_box_inner').each((i, e) => {
  $(e).css('background', '')
  $(e).css('opacity', '')
  v = $(e).find('span.strike').text().replace(/[,円]/g, '')
  p = Number(v)
  cx = Math.min(Math.max(0, Math.floor(p / 500)), 16).toString(16)
  $(e).css('background', `#f${cx}4`)
  b = $(e).find('ul[data-is_bought=true]')
  if (b.length > 0) {
    $(e).css('opacity', '0')
  }
})