according to textbox:
1. different border styles for textboxes (dotted, dashed, ...)
2. textbox-shadows also on other sides, not just bottom (for example: just on the left side, ...)
3. multiple favorites including line height for usage in different paper styles

according to full-page-text-typing
1. option to change the font and color of H1, etc. (for example: I want a blue headline and black text for my notes, so i can manually change this to the font and color I like and dont need to recolor after writing notes)
2. multiple textboxes in different templates (for example: in the 2-columns-paper not just the left textbox, also a right one or in Cornell Notes Template a bigger and a smaller textbox fitting the line height)
3. Button for superscript and subscript letters / numbers

according to images
1. solid border around images