: I added notebook name and path as tags, several users suggested that. I did not expect users to get disturbed by additional tags, I thought the more the better... In any case, I plan to allow customization of tags, so that you can opt-out for the notebook name and path and add custom tags.
: 1. This is currently not possible. If space is an issue, not that you can use smaller icons so that more icons fit without scrolling.
2. Still thinking. The problem is as described: LectureNotes has only one active color in any moment of time, and what you suggest requires two active colors, one for the background and one for the foreground. Allowing for a second color might look a minor change from user's perspective, but it is a big change from LectureNotes' perspective, so that such change requires quite some careful thinking.
One possible solution I am considering is to add an additional option to the cutter bucket fill. At present, you can recolor existing colors, I could add an option there to color non-existing color. This would allow to draw the text first with the first color, set the second color, select a rectangle with the cutter, click on the the `bucket´ icon, choose `color non-existing color´, and click `OK´.
In fact, if the background color has the `draw behind other colors´ set, you can draw the text first, select the background color, and draw a rectangle over the text; the text will stay `above´ the background color.