Change Label color

[limafresh]

Is there a way to change the color of a Label, not just a global one, but a specific Label? canvas.NewText doesn't suit me, since only Labels have wrapping and selectable mode. It's a shame it's not possible.

[dweymouth]

Instead of Label, you can use RichText with one TextSegment, then you can set the ColorName to any of the other standard theme color names (eg Primary, Danger, etc). If you need a custom color, you can pair it with a custom theme

[dweymouth]

You need to put the Label in a ThemeOverride container then with a custom theme to override the ColorNameForeground color. A little clumsy, yes. Hopefully the APIs will eventually support an easier way to do this

[limafresh]

You need to put the Label in a ThemeOverride container then with a custom theme to override the ColorNameForeground color. A little clumsy, yes. Hopefully the APIs will eventually support an easier way to do this

Is it possible to change the color of a specific Label, and not all Labels in the application?

[dweymouth]

By putting that label in a ThemeOverride container with a custom theme that returns whatever you want, yes

[limafresh]

Thank you so much! I was starting to think I'd have to look for another GUI toolkit. I'm leaving this example so it can help others.

package main

import (
	"image/color"

	"fyne.io/fyne/v2"
	"fyne.io/fyne/v2/app"
	"fyne.io/fyne/v2/container"
	"fyne.io/fyne/v2/theme"
	"fyne.io/fyne/v2/widget"
)

type CustomTheme struct {
	fyne.Theme
	labelColor color.Color
}

func (t *CustomTheme) Color(name fyne.ThemeColorName, variant fyne.ThemeVariant) color.Color {
	if name == theme.ColorNameForeground {
		return t.labelColor
	}
	return t.Theme.Color(name, variant)
}

func main() {
	a := app.New()
	w := a.NewWindow("Colored labels (real, without canvas.Text!!!)")

	// Purple label example
	purpleLabel := widget.NewLabel("Purple label")
	purpleLabel.Selectable = true
	purpleLabelTheme := &CustomTheme{Theme: theme.DefaultTheme(), labelColor: color.RGBA{153, 0, 204, 255}}
	purpleLabelOverride := container.NewThemeOverride(purpleLabel, purpleLabelTheme)
	
	// Green label example
	greenLabel := widget.NewLabel("Green label")
	greenLabel.Selectable = true
	greenLabelTheme := &CustomTheme{Theme: theme.DefaultTheme(), labelColor: color.RGBA{51, 204, 51, 255}}
	greenLabelOverride := container.NewThemeOverride(greenLabel, greenLabelTheme)

	// Regular label example
	regularLabel := widget.NewLabel("Regular Label")
	regularLabel.Selectable = true

	w.SetContent(container.NewVBox(purpleLabelOverride, greenLabelOverride, regularLabel))
	w.Resize(fyne.NewSize(400, 400))
	w.ShowAndRun()
}

[andydotxyz]

You need to put the Label in a ThemeOverride container then with a custom theme to override the ColorNameForeground color. A little clumsy, yes. Hopefully the APIs will eventually support an easier way to do this

Is it possible to change the color of a specific Label, and not all Labels in the application?

You can also use the Importance field to use one of the other standard colours, i.e. danger, success etc