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Analysis of Tiny Screen design:
Learnability:
The interface itself should be reasonably learnable, as long as the various text buttons are made visible and easy to find and clearly labeled. For the search/filter screen and the additional text description on the working through steps screen, it should be made very clear to the user through some kind of affordance that this can be pulled up by swiping the bottom of the screen upwards. In addition, the buttons along the corners of the working through steps screen may not be clear initially, but should be apparently upon clicking for the first time. The text-to-speech button in particular may be confusing, since people think of it as a volume button, which seems really strange for a sewing screen. This could be remedied perhaps by adding a text label, or switching to a different icon that is more obviously text-to-speech(?). Another idea is to create a brief how-to-use-this-app tutorial when the user first makes an account, that runs through something like this storyboard and goes through these functionalities very briefly.
Efficiency:
Having the buttons in the four corners in the working through the steps screen is efficient due to Fitt's Law. Having autocomplete when searching through patterns and tutorials would also increase efficiency. Because it would be inefficient to go through all of the steps of the project one by one to find where you left off, it is important to have the screen which shows are steps and you can click to any one of them to get to there, as well as the resume project option in the active projects screen.
Safety: