feat: basic theme builder layout with qualitative scale customization

demo/ts/app.tsx

@@ -203,7 +203,7 @@ class App extends React.Component<any, AppState> {
     super(props);
 
     this.state = {
-      route: window.location.hash.substr(1),
+      route: window.location.hash.slice(1),
     };
 
     if (this.state.route === "") {
@@ -280,9 +280,7 @@ class App extends React.Component<any, AppState> {
               </main>
             </>
           ) : (
-            <main style={mainStyle}>
-              <Child />
-            </main>
+            <Child />
           )}
         </div>
       </div>

demo/ts/components/theme-builder/config-preview.tsx

@@ -0,0 +1,84 @@
+import React from "react";
+import { VictoryThemeDefinition } from "victory-core/lib";
+
+type ConfigPreviewProps = {
+  config: VictoryThemeDefinition;
+  onClose: () => void;
+};
+
+const containerStyles: React.CSSProperties = {
+  position: "fixed",
+  top: 0,
+  right: 0,
+  bottom: 0,
+  width: "100%",
+  padding: 20,
+  backgroundColor: "rgba(255, 255, 255, 0.9)",
+  zIndex: 1000,
+};
+
+const copyButtonContainerStyles: React.CSSProperties = {
+  display: "flex",
+  alignItems: "center",
+  gap: 10,
+  marginBottom: 20,
+};
+
+const copyStatusStyles: React.CSSProperties = {
+  color: "#666",
+  fontSize: 12,
+  fontStyle: "italic",
+};
+
+const codeStyles: React.CSSProperties = {
+  overflow: "auto",
+  maxHeight: 600,
+  border: "1px solid #ccc",
+  padding: 10,
+  backgroundColor: "#f9f9f9",
+};
+
+const closeButtonStyles: React.CSSProperties = {
+  position: "absolute",
+  top: 10,
+  right: 10,
+  background: "transparent",
+  border: "none",
+  fontSize: "20px",
+  cursor: "pointer",
+};
+
+const ConfigPreview = ({ config, onClose }: ConfigPreviewProps) => {
+  const [copyStatus, setCopyStatus] = React.useState<string | null>(null);
+
+  const handleCopyThemeConfig = () => {
+    navigator.clipboard
+      .writeText(JSON.stringify(config, null, 2))
+      .then(() => {
+        setCopyStatus("Copied successfully.");
+        return "Theme config copied to clipboard";
+      })
+      .catch(() => {
+        setCopyStatus("Failed to copy.");
+      });
+  };
+
+  const handleClose = () => {
+    onClose();
+  };
+
+  return (
+    <div style={containerStyles}>
+      <div style={copyButtonContainerStyles}>
+        <button onClick={handleCopyThemeConfig}>Copy Theme Config</button>
+        {copyStatus && <span style={copyStatusStyles}>{copyStatus}</span>}
+      </div>
+      <h2>Theme Config Preview</h2>
+      <pre style={codeStyles}>{JSON.stringify(config, null, 2)}</pre>
+      <button onClick={handleClose} style={closeButtonStyles}>
+        &times;
+      </button>
+    </div>
+  );
+};
+export default ConfigPreview;

demo/ts/components/theme-builder/custom-options.tsx

@@ -0,0 +1,76 @@
+import React from "react";
+import { ThemeOption } from ".";
+import ConfigPreview from "./config-preview";
+
+type ColorChangeArgs = {
+  event: React.ChangeEvent<HTMLInputElement>;
+  index: number;
+  colorScale: string;
+};
+
+type CustomOptionsProps = {
+  activeTheme: ThemeOption;
+  onColorChange: (args: ColorChangeArgs) => void;
+};
+
+const colorContainer: React.CSSProperties = {
+  display: "grid",
+  gridTemplateColumns: "repeat(4, 1fr)",
+  gap: 20,
+};
+
+const colorPickerStyles: React.CSSProperties = {
+  width: 50,
+  height: 50,
+};
+
+const CustomOptions = ({ activeTheme, onColorChange }: CustomOptionsProps) => {
+  const [showThemeConfigPreview, setShowThemeConfigPreview] =
+    React.useState(false);
+
+  const onThemeConfigPreviewOpen = () => {
+    setShowThemeConfigPreview(true);
+  };
+
+  const onThemeConfigPreviewClose = () => {
+    setShowThemeConfigPreview(false);
+  };
+  return (
+    <>
+      <div>
+        <button onClick={onThemeConfigPreviewOpen}>
+          See Custom Config JSON
+        </button>
+        <section>
+          <h2>Color Scales</h2>
+          <h3>Qualitative</h3>
+          <div style={colorContainer}>
+            {activeTheme.config?.palette?.qualitative?.map((color, index) => (
+              <input
+                key={index}
+                style={colorPickerStyles}
+                type="color"
+                value={color}
+                onChange={(event) =>
+                  onColorChange({
+                    event,
+                    index,
+                    colorScale: "qualitative",
+                  })
+                }
+              />
+            ))}
+          </div>
+        </section>
+      </div>
+
+      {showThemeConfigPreview && activeTheme.config && (
+        <ConfigPreview
+          config={activeTheme.config}
+          onClose={onThemeConfigPreviewClose}
+        />
+      )}
+    </>
+  );
+};
+export default CustomOptions;