Slides look inconsistent.
Fonts changed unexpectedly.
Formatting shifts between slides.
Background or layout doesn’t match.
This usually happens when layouts or themes were not applied consistently.
Click the slide.
Click Slide → Apply layout.
Choose the correct layout.
Layouts control placeholder positioning.
Click Slide → Change theme.
Select a theme.
Themes control:
Fonts
Colors
Background style
Slide → Edit theme
Use this to:
Adjust master fonts
Modify layouts
Change global formatting
Be cautious — changes affect all slides.
View Google’s help article on themes and layouts