Built for Shopify WCAG Question

Hi, this is my third application in a row getting denied for Built for Shopify. It’s not the only issue but I’m curious on

“Text and color contrast must be WCAG 2.1 AA compliant. When using components with text, such as buttons, cards, or navigation, the background-to-text contrast ratio should be at least 4.5:1 to be WCAG AA compliant. Color contrast rations must abide by WCAG standards as well. See this screenshot for reference. “

I currently have code that I can put in console that scans the entire page for WCAG rules and tells me if anything’s failing. I was curious what other developers use to figure out all the issues because for big apps it seems there’s no overall easy way to see what’s wrong unless I’m wrong. It seems to be a page by page issue. Thank you…