Finding the default subtitles too hard to read on your devices? You can change the subtitle font, color, and size. Open the Netflix website in a browser, and from the Profiles menu, choose “Account.” Scroll down to the Profiles section, and select your profile. Here, choose the “Subtitle Appearance” option.
From here, you can change the subtitle font, text size, shadow, background color, and window color. Once you’re done, tap the “Save” button to save your settings.