Function tryInvertChromePDF

src/inject/dynamic-theme/index.ts:645–664

()

}

function tryInvertChromePDF() {
    if (!document.body || !chrome.dom) {
        return;
    }

    const root = chrome.dom.openOrClosedShadowRoot(document.body);
    if (!root || !root.querySelector('link[href$="/pdf_embedder.css"]')) {
        return;
    }

    const sheet = new CSSStyleSheet();
    sheet.replaceSync('[type="application/pdf"] { filter: invert(1) contrast(0.9); }');
    root.adoptedStyleSheets.push(sheet);
    cleaners.push(() => {
        const index = root.adoptedStyleSheets.indexOf(sheet);
        if (index >= 0) {
            root.adoptedStyleSheets.splice(index, 1);
        }
    });
}

/**
 * TODO: expose this function to API builds via src/api function enable()