Hello,

First of all thank you for this great application, I downloaded it today and I find it very pleasant and intuitive to use.

The tag system is a treat to use, but I expected better integration of the psd format.
Currently, not only is the thumbnail very low resolution, but some (if not most) of my psd files do not display a thumbnail at all:

I looked at this thread where you implemented psd support and it says that you used exiftool which can only extract a low resolution thumbnail. But it would be so much better if the psd thumbnail was the same size as the canvas (like in XnView MP).

I looked for alternatives to extract high-res image from psd files and the first lib I came across was ag-psd. Not only does it works flawlessly with all my psd files (within the limits of what the library can render) but you get a 1:1 image of the canvas in a minimal number of lines :

const fs = require('fs');
require('ag-psd/initialize-canvas');
const { readPsd } = require('ag-psd');

const buffer = fs.readFileSync('art.psd');

// read document structure and image data
const psd2 = readPsd(buffer);

fs.writeFileSync('art.webp', psd2.canvas.toBuffer());

However, generating the image may take some time, especially if the file is large: For example, it took me about 15s to build an uncompressed webp image of 7000x1800 resolution from a 180mb~ psd file (with about 150 active layers).
Anyway I'd rather wait longer at first launch for it to build high-resolution previews than have faster but partial/broken psd support as is currently the case.

The only drawback I would see is its size: the library weighs 3mb without its dependencies. I don't realize how much this would increase the size of the executable compared to the standalone exiftool library, so that's something to consider.