[Suggestion 31][Add .png Extension to Cached Background Images]

Hi,

1. Context:
    In cTrader Desktop (Windows) 5.1.11, background images stored in the directory C:\Users\%UserName%\AppData\Roaming\Spotware\Cache\Spotware\Background Images\ are saved without the .png extension, even though they contain valid PNG image data.

2. Problem:
    This storage approach (without the .png extension):

     - may not be immediately intuitive for users who explore the cache folder manually.

     - these files are not readily recognizable by the operating system as image files.

3. Proposed solution:
    It is suggested to include the .png extension when saving cached image files. 

    This enhancement would improve usability by allowing users to easily identify and open images with standard tools while maintaining the existing caching mechanism.

4. What do you think about this suggestion ?

Thank you for considering this request and I’m happy to provide additional details or insights if needed.