| add_bing_images | Add Bing image search images to questions with missing images |
| average_color | Get the average hex color from a list of colors |
| create_answer_sheet | Creates and shares an answer sheet for the participant |
| create_question | Create an HTML file with the quiz question |
| create_quiz_pages | Create all the pages of the quiz |
| create_summary_sheet | Create a summary answer sheet |
| demo_answers | Demo quiz answers |
| demo_participants | Demo quiz participants |
| demo_questions | Demo quiz questions |
| evaluate_answers | Evaluate the correctness of question answers |
| favourite_question | Create an HTML file with the favourite question question |
| favourite_result | Create an HTML file with the favourite question answer |
| favourite_table | Create an HTML favourite question table |
| fill_demo_answer_sheets | Fill demo answer sheets with answers for testing purposes |
| final_results | Create an HTML file with final quiz results |
| get_color_dist | Calculate distances between colors in RGB space |
| get_demo_participants | Get demo participants data frame |
| get_first_bing_image | Get the URL of the first image search result on Bing |
| get_question_color | Get the color for the question based on its sequence number |
| get_transparent_pic | Get the correct system path to transparent picture |
| header_div | HTML code for header div |
| preview_images | Create an HTML file with all quiz questions for image preview |
| process_colors | Process colors chosen by participants |
| quiz_clean_drive | Deletes the answer sheets |
| quiz_setup | Set up the quiz environment |
| random_color | Select a random color |
| run_demo_quiz | Run demo quiz |
| show_contestants | Create the quiz intro page with participants' images and... |
| show_leaderboard | Create the current leaderboard |
| shuffle_answers | Randomly assign answers to A-D |
| shuffle_questions | Randomly shuffle questions in rounds |
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