Question

which are guidelines for using themes? check all that apply.
using different cell styles can help you differentiate different types of data.
fonts should be easily readable and of appropriate size.
you cannot customize the default themes.
be consistent with themes across worksheets and workbooks.
applying a new theme will only change cells in a workbook that have no other formatting applied.

Explanation:

1. "Using different cell styles can help you differentiate different types of data" - Different cell styles (part of themes) help distinguish data types, so this is a guideline.
2. "Fonts should be easily readable and of appropriate size" - Readable, appropriately sized fonts are a key theme - related guideline for clarity.
3. "You cannot customize the default themes" - This is false; default themes can be customized.
4. "Be consistent with themes across worksheets and workbooks" - Consistency in themes is a good practice for a unified look, so this is a guideline.
5. "Applying a new theme will only change cells in a workbook that have no other formatting applied" - This is false; a new theme can override existing formatting (depending on settings) or apply to all cells.

Answer:

• Using different cell styles can help you differentiate different types of data.
• Fonts should be easily readable and of appropriate size.
• Be consistent with themes across worksheets and workbooks.