Fix GtkBackend's colorableRectangle, sometimes required a few updates to appear

stackotter · stackotter · commit cebd011c09fd · 2024-12-06T11:19:55.000+10:00
No clue why it wasn't working, but changing it from a GtkFixed to
a GtkBox fixed the issue.
diff --git a/Sources/GtkBackend/GtkBackend.swift b/Sources/GtkBackend/GtkBackend.swift
@@ -188,7 +188,7 @@ public final class GtkBackend: AppBackend {
     }
 
     public func createColorableRectangle() -> Widget {
-        return Fixed()
+        return Box()
     }
 
     public func setColor(ofColorableRectangle widget: Widget, to color: SwiftCrossUI.Color) {

Original file line number	Diff line number	Diff line change
`@@ -188,7 +188,7 @@ public final class GtkBackend: AppBackend {`
`188`	`188`	`}`
`189`	`189`
`190`	`190`	`public func createColorableRectangle() -> Widget {`
`191`		`- return Fixed()`
	`191`	`+ return Box()`
`192`	`192`	`}`
`193`	`193`
`194`	`194`	`public func setColor(ofColorableRectangle widget: Widget, to color: SwiftCrossUI.Color) {`