Customize thumbnail image

[jared-hughes]

By default, this could create thumbnail images based on the actual viewport size instead of the arbitrary 200×200 default for Desmos.

This could also allow uploading custom thumbnails like u/-fasteroid used in https://www.desmos.com/calculator/desmossets (see https://www.reddit.com/r/desmos/comments/m6ezp8/desmos_set_utilities/).

[jared-hughes]

Keep in mind that the image should probably still be 200×200 to avoid increasing the thumbnail file size. Use targetPixelRatio as 200 / min (x bound, y bound), though these should be customizable.

This plugin can be controlled through a single setting (maybe change plugin settings to string instead of boolean and migrate paste state to strings based on versioning):

customPixelRatio

• false: default (200x200, pixel ratio 1)
• true: 200x200, vmin pixel ratio

This following setting should be kept with graph state: Use first image in the graph as thumbnail (need to limit size + require png. Use default thumbnail and alert() in overriden module if these conditions are not met).

Maybe use the first image in a folder titled "DesModder Thumbnail" as the thumbnail.

[jared-hughes]

Use a UI to set the manual photo, and store the data url for it in the graph metadata? Unfortunately increases graph size, so might want to put a checkbox on whether the uploaded image should be stored in the graph data.