add camera modes hint

[odudex]

What is this PR for?

Add camera mode toggle hint and refactor camera image rendering

What is the purpose of this pull request?

• Bug fix
• New feature
• Docs update
• Other

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.94%. Comparing base (b375d67) to head (87f88af).
Report is 6 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #516   +/-   ##
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  Coverage    94.94%   94.94%           
========================================
  Files           75       75           
  Lines         8388     8394    +6     
========================================
+ Hits          7964     7970    +6     
  Misses         424      424           

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[tadeubas]

Awesome idea! Tested on Cube, Dock, Yahboom and Amigo here without any issues. Nice job! 👍

[jdlcdl]

Tried this on amigo and --unsupported yahboom_devkit, worked very well. Also worked well on simulator for amigo.

Not sure what to expect for other devices, but simulator for yahboom overlaid the camera image on-top of the mode hints, which was not the case on the yahboom_devkit (while I expect that yahboom and yahboom_devkit have similar screens).

These hints are great to uncover very useful features (zoom mode relieves me from having to refocus camera on my amigo often).

[odudex]

Simulator: Fixed simulator for Yahboom, Dock, also M5stickV which was not showing anything at all.
I also changed the color settings as camera feed was bluish on my PC, please let me know if colors got messed up for you.