Font size choices
There is currently one font size choice setting in Outlook. Please add options for font sizes for the mail index, mail body, etc. Changing the size for the index will make the font size in the mail messages too large or too small, depending on the setting.
all fonts and preview fonts should look like earlier version of outlook in the new outlook for Mac
The Small to Larger slider is not sufficient. It would be better for vision challenged to be able to set the sizes explicitly for reading messages,, message list etc.