Graph CSS Theme Switcher
This example keeps one left-to-right relation-graph tree and switches it among eight CSS skins at runtime. It combines wrapper-class theming, icon-slot nodes, a themed `RGMiniView`, and a `getNodes()` plus `updateNode(...)` pass so the minimap stays synchronized with the active accent. A shared floating panel also exposes wheel mode, drag mode, and image export utilities.
Switching Eight CSS Themes on One Relation Graph Tree
What This Example Builds
This example renders a left-to-right hierarchy of circular icon nodes and lets the user switch the same graph among eight visual themes at runtime. The graph data, layout, and RelationGraph instance stay in place while the wrapper class changes from my-theme-1 to my-theme-8, so the map background, node surfaces, line colors, checked states, toolbar chrome, and minimap all change together.
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