Thank you very much for your suggestions and for taking the time to share them. And do not worry; they all make sense.
However, while some are already possible by changing some parameters within the setting menu, others are not that easy to put into practice. :)
We are trying to find a better way to let players know about already implemented features, such as:
- hide the preview image or adjust its transparency
- turn music and sounds independently on/off
- adjust volume independently for sounds and music
- highlight (or not) the hovered piece of the puzzle
- toggle fullscreen using F11
- show settings window using F9
- reset the profile to start fresh, using the main menu
- check personal best times using the vertical toolbar's icon
- hide/show timer
- change background color to darker/lighter
In addition, we are looking for a design idea that will allow for multiple difficulty levels, and we are working on an experimental way of "clustering" the puzzle pieces on a few spots outside the actual image/puzzle area.
Thank you again and warm regards.