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GTK: disable color management (#5593) 

fixes: https://github.com/ghostty-org/ghostty/discussions/4976

Before: 

![image](https://github.com/user-attachments/assets/169c29b5-b52a-44cd-aea8-43c2cfd8e411)

After:

![image](https://github.com/user-attachments/assets/80468ae2-7d75-464f-a2b0-37da48fdf61d)
pull/5654/head
Jeffrey C. Ollie 2025-02-08 20:48:36 -06:00 committed by GitHub
parent f95f636f1f c7044b198c
commit 2c06ce761b
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1 changed files with 8 additions and 0 deletions
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8
src/apprt/gtk/App.zig
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@ -146,6 +146,10 @@ pub fn init(core_app: *CoreApp, opts: Options) !App {
var gdk_disable: struct {
@"gles-api": bool = false,
/// current gtk implementation for color management is not good enough.
/// see: https://bugs.kde.org/show_bug.cgi?id=495647
/// gtk issue: https://gitlab.gnome.org/GNOME/gtk/-/issues/6864
@"color-mgmt": bool = true,
/// Disabling Vulkan can improve startup times by hundreds of
/// milliseconds on some systems. We don't use Vulkan so we can just
/// disable it.
@ -153,6 +157,10 @@ pub fn init(core_app: *CoreApp, opts: Options) !App {
} = .{};
environment: {
if (version.runtimeAtLeast(4, 18, 0)) {
gdk_disable.@"color-mgmt" = false;
}
if (version.runtimeAtLeast(4, 16, 0)) {
// From gtk 4.16, GDK_DEBUG is split into GDK_DEBUG and GDK_DISABLE.
// For the remainder of "why" see the 4.14 comment below.