feat: Wire up design settings (theme colour & logo)

editor.planx.uk/src/pages/FlowEditor/components/Settings/DesignSettings/ButtonForm.tsx

@@ -0,0 +1,61 @@
+import Button from "@mui/material/Button";
+import Link from "@mui/material/Link";
+import { useFormik } from "formik";
+import React from "react";
+import ColorPicker from "ui/editor/ColorPicker";
+import InputDescription from "ui/editor/InputDescription";
+import InputRow from "ui/shared/InputRow";
+import InputRowItem from "ui/shared/InputRowItem";
+
+import { DesignPreview, EXAMPLE_COLOUR, SettingsForm } from ".";
+
+export const ButtonForm: React.FC = () => {
+  const formik = useFormik<{
+    buttonColor: string;
+  }>({
+    initialValues: {
+      buttonColor: EXAMPLE_COLOUR,
+    },
+    onSubmit: () => {},
+    validate: () => {},
+  });
+
+  return (
+    <SettingsForm
+      formik={formik}
+      legend="Button colour"
+      description={
+        <>
+          <InputDescription>
+            The button background colour should be either a dark or light
+            colour. The text will be programmatically selected to contrast with
+            the selected colour (being either black or white).
+          </InputDescription>
+          <InputDescription>
+            <Link href="https://www.planx.uk">
+              See our guide for setting button colours
+            </Link>
+          </InputDescription>
+        </>
+      }
+      input={
+        <InputRow>
+          <InputRowItem>
+            <ColorPicker
+              color={formik.values.buttonColor}
+              onChange={(color) => formik.setFieldValue("buttonColor", color)}
+              label="Button colour"
+            />
+          </InputRowItem>
+        </InputRow>
+      }
+      preview={
+        <DesignPreview bgcolor="white">
+          <Button variant="contained" sx={{ backgroundColor: EXAMPLE_COLOUR }}>
+            Example primary button
+          </Button>
+        </DesignPreview>
+      }
+    />
+  );
+};