Along with "downsizing" your Figma image fills, you can also optionally export the existing image fills; this will automatically download all of the original image files being used inside of your layer image fills (and will not downsize them in Figma).
To get started with exporting your original images from your Figma layer image fills, open the Fills tab in the TinyImage header.
When you first open the Fills tab, TinyImage scans every layer on the current Figma page for image fills. Click the refresh icon, labelled Rescan all fills on this page, whenever you need to rescan the page.
Selecting the image fills to export
Once the image fills have loaded, you can select which you would like to export by checking or unchecking them in the list.
Selecting layers in Figma narrows the visible and exportable fills when those layers match fills that TinyImage has already loaded. TinyImage shows Showing selected layer fills while this filter is active. If the current selection has no matching fills, TinyImage keeps the full loaded list visible. Changing the selection does not rescan the page; use the refresh icon to load newly added fills.
If you're unsure which fill relates to which layer, you can click on the Image icon button in the list, which will instantly zoom and scroll to that layer on your Figma page.
Export your fills
When you're ready, click on the Export Figma Image Fills button to start the export process. TinyImage will automatically download the original image files being used for each image fill you've selected. Once every image has been downloaded, you'll be able to download them all as a .zip file, which you can unzip anywhere on your computer to view all of your exported image files.