gui: small changes

Author: esimov

gui.go

@@ -217,15 +217,15 @@ func (g *Gui) draw(win *app.Window, e system.FrameEvent) {
 
 	// Disable the preview mode and warn the user in case the image is resized both horizontally and vertically.
 	if resizeBothSide {
-		msg := "Preview is not available when the image is resized horizontally and vertically at the same time!"
-
 		var th = material.NewTheme(gofont.Collection())
-		th.Palette.Fg = color.NRGBA{R: 0xFF, A: 0xFF}
+		th.Palette.Fg = color.NRGBA{R: 0x00, A: 0xFF}
+
 		layout.Flex{
 			Axis:      layout.Horizontal,
 			Alignment: layout.Middle,
 		}.Layout(g.ctx,
 			layout.Flexed(1, func(gtx C) D {
+				msg := "Preview is not available when the image is resized horizontally and vertically at the same time!"
 				return layout.UniformInset(unit.Dp(4)).Layout(g.ctx, func(gtx C) D {
 					return layout.Center.Layout(g.ctx, func(gtx C) D {
 						return material.Label(th, unit.Sp(40), msg).Layout(gtx)