Hi!Thank you for the interest in my software!Yes, if you mean if SpeedyPainter supports brushes that change direction accordignly to brush direction the answer is yes. You can try it by yourself, for example using the "rake" brush, one of the predefined brushes that you can choose in the brush properties dialog (you can show this dialog by clicking on the button at the upper right corner).Yes, you can also change the color of SpeedyPainter's interface, to do that just open the "Settings dialog" (you can open this dialog by clicking on the button depicting two small gears, in the left toolbar) and move the slider near the upper right corner of the dialog, according to your color preference:Hope this can help,Kind regards,Andrea