Keep it simple
Keep it simple
Keep it simple
Keep it simple
Keep it simple
Make it readable
Make it readable
Make it readable
Make it readable
Make it readable
Display information clearly
Display information clearly
Display information clearly
Display information clearly
Display information clearly
Display information clearly
Focus on usability
Focus on usability
Focus on usability
Focus on usability
Focus on usability
Focus on usability
The message should be obvious
The message should be obvious
The message should be obvious
The message should be obvious
The message should be obvious
The message should be obvious
Be consistent
Be consistent
Be consistent
Be consistent
Be consistent
Be consistent
Have fun
Have fun
Have fun
Have fun
Have fun
Have fun
Have fun
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