Double click on the scale tool and turn off transform objects. Turn on transform patterns and change the percentage to make the pattern bigger or smaller.
Awesome tutorial, thank you! I also had some issues with creating the stripe swatches. It worked for me at first and then it didn't. I found that the difference was when I used a color directly from Illustrator versus as color I pulled from an image using the eyedropper tool. To work around this, I took the color from the image and filled a small rectangle with it. Then I went to the fill on the bottom left-hand side and double-clicked on the color to open the Color Picker. I wrote down the code after the # sign and then closed the box and deleted the rectangle with the color filled in. I then created a new rectangle (any color or no fill) and double clicked on the fill on the left-hand side again. This time, I typed in the code where the # sign is and hit ok. Now the color in the rectangle is the same as the color taken from the photo. However, now it is able to be used to create the stripe swatches and works perfectly. I hope this is helpful for anyone who comes across the same issue.
A great tutorial-thank you! Everything is working for me, except I can't seem to save a transparent fill in the stripe swatches (it just fills both boxes with the top box's color once the pattern is added to Swatches). I've used no fill and no stripe for the lower box of the stripe sets, and sent it to the back as she said. Wondering what I'm doing wrong, but this is a critical step to make it all work right! (I did find a work-around to this problem. I created all the line pattern swatches in a separate Illustrator document with an artboard the exact size of the two lines. This did allow transparency in the lower box when I created a pattern this way. I'm using Adobe CC Illustrator 2020.)
What shortcut did you use to scale (windows). I did not understand that very well. If I use the shift key and drag it makes the square smaller instead of the lines in it. Thank you :)