Scale icons with window size.

[quequotion]

Prerequisites

• I have searched open and closed issues for duplicates.

Feature

As per proposed design improvements for switchboard, icons should scale up when the window becomes larger than a threshold size.

We should talk about that threshold: at what x,y is it appropriate to scale up the icons--or is it only appropriate when the window is fully maximized?

My original idea was for the icons to scale smoothly with window size, but that may be difficult to implement. For now, the plan is to swap the current 32px icons with 48px icons at the threshold window size (and of course, back again, should the window decrease in size).

[vjr]

This is cool. Please consider HiDPI as well (icons should not be blurry) for this improvement.

[cassidyjames]

My original idea was for the icons to scale smoothly with window size

Yeah we definitely don't want that; icons are pixel-hinted, meaning they are crisp when displayed at their intended size, but they'd look blurry when scaled in between sizes. So they should only snap to supported sizes like 24, 32, 48, 64, and 128 px.

Please consider HiDPI as well

Of course; if using normal GTK methods, it should just work.