Scaffold out UI components

src/components/SizeInput/SizeInput.css

@@ -0,0 +1,56 @@
+.size-bar {
+  position: relative;
+  display: flex;
+  align-items: center;
+  width: 250px;
+  margin: 4px;
+  padding: 8px 16px;
+  border: 1px solid black;
+  border-radius: 24px;
+  background-color: white;
+  font-family: sans-serif;
+  font-size: 13.333px;
+  height: 20px;
+}
+
+.size-bar:focus-within {
+  outline: none;
+  border: 1px solid violet;
+  border-radius: 24px;
+}
+
+.size-bar input {
+  flex: 1;
+  margin-left: 16px;
+  border: none;
+  -webkit-appearance: none;  /* Override default CSS styles */
+  appearance: none;
+  height: 1px; /* Specified height */
+  background: black; /* Grey background */
+  outline: none; /* Remove outline */
+  opacity: 0.7; /* Set transparency (for mouse-over effects on hover) */
+}
+
+.size-bar input::-webkit-slider-thumb {
+  -webkit-appearance: none; /* Override default look */
+  appearance: none;
+  width: 12px; /* Set a specific slider handle width */
+  height: 12px; /* Slider handle height */
+  background: black; /* Green background */
+  cursor: pointer; /* Cursor on hover */
+}
+
+.size-bar input::-moz-range-thumb {
+  width: 12px; /* Set a specific slider handle width */
+  height: 12px; /* Slider handle height */
+  background: black; /* Green background */
+  cursor: pointer; /* Cursor on hover */
+}
+
+.size-bar input:focus {
+  outline: none;
+}
+
+.size-bar input::placeholder {
+  color: black;
+}

src/components/SizeInput/SizeInput.tsx

@@ -0,0 +1,38 @@
+import React from "react";
+import { useRecoilState } from "recoil";
+
+import { iconSizeAtom } from "../../state/atoms";
+import "./SizeInput.css";
+
+type SizeInputProps = {};
+
+const SizeInput: React.FC<SizeInputProps> = () => {
+  const [size, setSize] = useRecoilState(iconSizeAtom);
+
+  const handleSizeChange = (event: React.ChangeEvent<HTMLInputElement>) => {
+    const {
+      target: { value },
+    } = event;
+    const sizeInput = parseInt(value);
+
+    if (sizeInput > 0) setSize(sizeInput);
+  };
+
+  return (
+    <div className="size-bar">
+      <label htmlFor="size-input">{`Size: ${size}px`}</label>
+      <input
+        id="size-input"
+        value={size}
+        type="range"
+        title={size.toString()}
+        min={16}
+        max={96}
+        onChange={handleSizeChange}
+        step={4}
+      />
+    </div>
+  );
+};
+
+export default SizeInput;