app/code/Magento/Payment/view/base/web/images/cc/ae.png

app/code/Magento/Payment/view/base/web/images/cc/di.png

app/code/Magento/Payment/view/base/web/images/cc/dn.png

app/code/Magento/Payment/view/base/web/images/cc/jc.png

app/code/Magento/Payment/view/base/web/images/cc/mc.png

app/code/Magento/Payment/view/base/web/images/cc/sm.png

app/code/Magento/Payment/view/base/web/images/cc/un.png

app/code/Magento/Payment/view/base/web/images/cc/vi.png

...o/Payment/view/frontend/web/template/payment/cc-form.html

...kout/web/css/source/module/checkout/_payment-options.less