Build the 540:283 learning frame
At roughly 1.908:1, the 540:283 ratio is broad enough for contextual scenery while retaining slightly more height than some nearby wide-card formats. The canvas holds 611,280 pixels.
- Exact 1080x566 output with a reduced 540:283 ratio
- Locked proportions preserve presenters and diagrams without stretching
- Flexible original, JPG, PNG, or WebP output for varied libraries