ReferenceTrainer

TODO:

• Create datastructure for image + metadata
• Cache downloaded data from api to save api calls
• Add searching of cache by tags
• Implement practice mode.
  • Show image fullscreen. and switch on timer. add play, pause and skip back and forwards buttons.
  • Sound signal at end of time.
  • Toggable overlay with different rulers or markers
  • Modifiers you can choose from
    • Set timeout time.
    • Set number of pictures
    • Filter by tags
    • flip image in random direction.
    • grayscale image.
    • Sound signal interval selector.