You can also try these related scripts:

• BunPro: JLPT Percentage - Adds percentages to the progress bars.
• Bunpro: Example Sentence Audio - Adds Google Translate audio to all the sentences that do not yet have audio.
• Bunpro: Egg Timer - Times your review session.
• Bunpro: JLPT Level Indicator - Adds a JLPT level indicator in reviews.
• Bunpro: Jisho Button - Searches the sentence on Jisho.