Penpower MyInk (iOS/Win) - Manual (Page 81)

Chapter 9 Note Application
9-3
Tip: You can select several objects to change their attribute at a time.
Note: The changes of [Stroke size] will be shown on the handwritings’
strokes but the text’ strokes will remain the same.
9.3 Edit Text Object’s Attribute
When you select text objects, the function of [Stroke size], [Section
color] and [Font size] will display on the recognition and editing toolbar
and will be available for you to use.
3. Click [OK] to confirm the adjustment, and the objects will become
uniform in your notes.