Issues about inconsistent colors and fonts
What does it look like when you download and insert it to PowerPoint (adding a new slide)
This is because all designs in [Diagram Library] follow the rules of PowerPoint theme fonts and theme colors, to make it easier to replace and change PowerPoint overall fonts and colors.
You can optimize your PowerPoint via the following ways, to keep the result consistent with the preview:
1. Change the theme font
Click and choose Slide Master in the View Tab, click and choose Font and then choose Custom Font.
2. Choose iSlide standard color
Choose [Color Library] in the [iSlide] Tab and click to apply the "iSlide Standard Color".