auramagi / newicon Goto Github PK

These are current view capture steps:

1. Add template View to NSHostingController
2. Add it to a custom NSWindow
3. Save as image with cacheDisplay(in:to:)

However, using cacheDisplay produces some side-effects and the resulting image does not exactly match View as displayed.

To get around some display issues, we tell SwiftUI to first flatten view hierarchy by itself using the drawingGroup modifier.

But even this has some weirdness, especially with blend modes. First of all, it loses all transparency, but that part is at least consistent with previews/actual rendering after using drawingGroup.

Using .overlay(Color.mint.blendMode(.hue)):

We can get around that by masking the result with the initial view:

But this still leaves us with incorrectly blended color in some parts.

Compare to how this looks in previews and when displayed in a window.

Unreadable when dark mode is disabled.

as is:
text is difficult to read

to be:
text can be read

environment:
Dark mode OFF

Mac OS 12.3.1（21E258）

❯ mint run auramagi/NewIcon -h
🌱 Finding latest version of NewIcon
🌱 Running new-icon 0.1.1...
OVERVIEW: macOS icon customization

❯ mint version
Version: 0.17.1

❯ swift --version
swift-driver version: 1.45.2 Apple Swift version 5.6 (swiftlang-5.6.0.323.62 clang-1316.0.20.8)
Target: arm64-apple-macosx12.0

to reproduce:

❯ mint run auramagi/NewIcon text /Applications/Xcode-13.3.1.app 13.3.1 
🌱 Finding latest version of NewIcon
🌱 Running new-icon 0.1.1...

workaround:
Dark mode ON
Rerun!