Thumbnail scaling doesn't look great on low-DPI screens

[statico]

First, thank you all for making this wonderful tool. You all rock!

Describe the bug

I use a 1920x1080 144hz gaming monitor as my primary display. When I use AltTab, the thumbnails look pixelated and jaggy, like they haven't been scaled nicely.

Steps to reproduce the bug

1. Use a non-high-DPI display
2. Press command-tab
3. Squint & sneer

Suggestion

Based on some cursory research, it looks like this could be fixed in ThumbnailView.swift somehow using some kind of image scaling interpolation settings. Some links:

• SO: Scaled image in NSImageView looks bad with layer-backing on
• SO: kCAFilterNearest maginifcation filter (UIImageView)
• CALayer::magnificationFilter docs

[lwouis]

Hi @statico

There is already an open PR on this this topic: #705

Please check out the conversation there. It's quite a complex situation. I'll close this ticket in the meanwhile to keep the efforts centralized