h🔲

#square button #black square button #outline box #h in square #minimal h in box #geometric h

🟣□️

#purple box #purple square #outline box #square shape #color purple

🔲📝🔳

#text border #word frame #framed text #outline box #text container #box around words #memo border

+☐

#plus symbol #outline box #add shape #positive sign #mathematical plus

⬛️□

#white square symbol #outline box #simple border #contrasting squares