# Check box option In the TPL: ```

Background effects

On the desktop application, it's possible to use a semi-transparent background tinted in the colors of the user's wallpaper to add a touch of color.

``` In `doRender()`: ``` doRender() { this.$backgroundEffects = this.$widget.find("input.background-effects"); this.$backgroundEffects.on("change", () => this.updateCheckboxOption("backgroundEffects", this.$backgroundEffects)); } ``` In `optionsLoaded(options)`: ``` async optionsLoaded(options) { this.setCheckboxState(this.$backgroundEffects, options.backgroundEffects); } ```