Recommended Image Sizes:
Favicon (Site Icon): 32 x 32 pixels
Actions: 80 x 80 pixels
Marketplace Course Image:
Maximum size on Marketplace page: 624 x 357 pixels
Best size: 1000 x 562 pixels
Aspect Ratio: 16:9 (0.5625)
Training/Module/Replay Thumbnail:
Standard size: 850 x 478 pixels
Recommended size: 2000 x 1120 pixels
If using a larger size, maintain the same aspect ratio.
