I used Adobe XD to create this. It was fairly easy to use this program as the tools were simple to understand and there wasn’t many of them. I think the app is good for creating demos for app designs as thats what it is deigned to make. I created a gradient using XD and it was simple enough to do. You selected the colour you wanted and another different one to create the one gradient. I Also used the square tool to create the buttons on the different pages and it was simple enough to smooth the edges as it was only a slider to decide the sharpness or roundness of the corners. The text tool I used gives the basic functions to type and also allowed to pick from a wide amount of Fonts that was available.