> For the complete documentation index, see [llms.txt](https://docs.optis.me/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.optis.me/swatch/global-settings/global-settings-overview.md). # Global settings overview **Global Settings** control behaviors and appearance that apply across your whole store, no matter which display type a product uses.
Open the **Global settings** page in the app to manage:
SettingWhat it controls
Out-of-stock displayHow sold-out variants (exist but 0 available) look: no change, strike-through, gray out, or hidden
Non-existent displayHow option combinations that were never created as a variant look: no change, strike-through, gray out, or hidden
Two-color swatch splitHow a swatch with two colors is split: diagonal, horizontal, or vertical
Auto sold-out badgeAutomatically show a "Sold out" label on every out-of-stock variant store-wide, with no manual assignment
TooltipShow the option value name in a tooltip when hovering a swatch
Image swatch sizeThe pixel size used to render image swatches
Custom CSSAdvanced styling with your own CSS
## Tooltip Turn **Tooltip** on to show the option value (for example, "Royal Blue") in a small tooltip when a customer hovers over a swatch. This is helpful when the color alone is not obvious. ## Image swatch size Image swatches are rendered at a fixed size (default **450 x 450 px**, adjustable from 20 to 1200). If you increase the swatch display size but swatches look blurry, raise this value so the source image is sharp.
Swatch image optimization width and height settings in Global settings
{% hint style="info" %} See [Why is my image swatch blurry, and how can I fix it?](/swatch/frequently-asked-questions/why-is-my-image-swatch-blurry-and-how-can-i-fix-it.md) for details. {% endhint %} Remember to click **Save** after changing any global setting.