digraph graphname {
    accessibility_features [label="Accessibility Features"];
    feature_chromevox [label="ChromeVox (Spoken feedback)"];
    feature_select_to_speak [label="Select to Speak"];
    frameworks [label="Frameworks"];
    chrome_automation [label="chrome.automation api"];
    chrome_text_to_speech [label="chrome.tts (text-to-speech) api"];
    renderers [label="Renderers"];
    renderer_arc [label="Android apps"];
    renderer_blink [label="Web"];

    accessibility_features -> frameworks;
    accessibility_features -> feature_chromevox;
    accessibility_features -> feature_select_to_speak;
    frameworks -> chrome_automation;
    frameworks -> chrome_text_to_speech;
    chrome_automation -> renderers
    renderers -> renderers_arc
    renderers -> renderers_blink
}