• There are also some unicode ticks:

    ✓ U+2713 CHECK MARK (tick)
    ✔ U+2714 HEAVY CHECK MARK (bold tick)
    ☐ U+2610 BALLOT BOX (square)
    ☑ U+2611 BALLOT BOX WITH CHECK (square with tick)

    Those can just be cut 'n' pasted from here.

About

Avatar for Velocio @Velocio started