Generate small mp4's of ten second timers with different coloured backgrounds
python3 -m pip install -r requirements.txt
python3 timer_mp4.py
graph TB
linkStyle default fill:#ffffff
subgraph diagram [Software System - System Context]
style diagram fill:#ffffff,stroke:#ffffff
1["<div style='font-weight: bold'>User</div><div style='font-size: 70%; margin-top: 0px'>[Person]</div><div style='font-size: 80%; margin-top:10px'>A user of my software system.</div>"]
style 1 fill:#08427b,stroke:#052e56,color:#ffffff
2["<div style='font-weight: bold'>Software System</div><div style='font-size: 70%; margin-top: 0px'>[Software System]</div><div style='font-size: 80%; margin-top:10px'>My software system.</div>"]
style 2 fill:#1168bd,stroke:#0b4884,color:#ffffff
1-. "<div>Uses</div><div style='font-size: 70%'></div>" .->2
end