Dominant color CSS doesn't work for some apps

[Misery7100]

Ubuntu 20.04.2 LTS GNOME Shell 3.36.9

I've seen similar issue, but don't know why now it like that. All is fine without dominant color, naturally

[Misery7100]

At least adding fallback with default white color makes it better

https://github.com/micheleg/dash-to-dock/blob/302c6932617fc12b8f9382db71906e7ec32fff3b/appIconIndicators.js#L385-L391

// Apply dominant color if requested
if (settings.get_boolean('running-indicator-dominant-color')) {
    let colorPalette = this._dominantColorExtractor._getColorPalette();
    if (colorPalette !== null) {
        this._bodyColor = Clutter.color_from_string(colorPalette.original)[1];
    } else {
        this._bodyColor = Clutter.color_from_string('white')[1];
    }
}

[cjkr]

@Misery7100, the solution you offered worked for me if I add a try-catch block as so:

// Apply dominant color if requested
if (settings.get_boolean('running-indicator-dominant-color')) {
   try {
      let colorPalette = this._dominantColorExtractor._getColorPalette();
      if (colorPalette !== null) {
         this._bodyColor = Clutter.color_from_string(colorPalette.original)[1];
      } 
   } catch {
      this._bodyColor = Clutter.color_from_string('white')[1];
   }
}

[jrom99]

I don't know if this is any better, but I found it easier to just reuse the other setting for this, since they are mutually exclusive at this point.

 // Apply dominant color if requested
 if (settings.get_boolean('running-indicator-dominant-color')) {
     try {
        let colorPalette = this._dominantColorExtractor._getColorPalette();
        if (colorPalette !== null) {
            this._bodyColor = Clutter.color_from_string(colorPalette.original)[1];
        } else {
             this._bodyColor = Clutter.color_from_string(settings.get_string('custom-theme-running-dots-color'))[1];
        }
    } catch {
        this._bodyColor = Clutter.color_from_string(settings.get_string('custom-theme-running-dots-color'))[1];
    }
 }