@@ -57,7 +57,6 @@ return data
 }
 
 func (self *SymmetricCrypt) Encrypt(text string) (string, error) {
-	fmt.Println(text)
 	block, err := aes.NewCipher([]byte(self.Secret))
 	if err != nil {
 		return "", err

@@ -17,6 +17,19 @@ <section id="user_section">
   <details class="ui_win" open><summary>identity</summary>
     <label for="name_entry">username</label>
     <input id="name_entry" onblur="saveName()">
+    <details id="theme_accordion"><summary>theme</summary>
+      <form id="theme_cfg" onsubmit="return false">
+        <label>bg color<input type="color" id="bg_col_input"/></label><br/>
+        <label>bg opacity<input type="range" id="bg_col_opacity" min="0" max="255"/></label><br/>
+        <label>fg color<input type="color" id="fg_col_input"/></label><br/>
+        <label>fg opacity<input type="range" id="fg_col_opacity" min="0" max="255"/></label><br/>
+        <label>main color<input type="color" id="main_col_input"/></label><br/>
+        <label>main opacity<input type="range" id="main_col_opacity" min="0" max="255"/></label><br/>
+        <label>sub color<input type="color" id="sub_col_input"/></label><br/>
+        <label>sub opacity<input type="range" id="sub_col_opacity" min="0" max="255"/></label><br/>
+        <button onclick="setTheme()">Apply</button><button onclick="resetTheme(defaultTheme)">Reset</button>
+      </form>
+    </details>
   </details><br/>
   
   <details class="ui_win"><summary>goto</summary>

@@ -10,6 +10,7 @@ box-sizing: border-box;
   padding: 0;
   margin: 0;
   appearance: none;
+  -webkit-appearance: none;
   outline: none;
 }
 
@@ -228,4 +229,80 @@ }
 
 #registration a:hover {
   color: var(--fg_color);
+}
+
+#theme_accordion summary {
+  text-align: right;
+}
+
+input[type=range] {
+  -webkit-appearance: none; /* Hides the slider so that custom slider can be made */
+  width: 100%; /* Specific width is required for Firefox. */
+  background: transparent; /* Otherwise white in Chrome */
+}
+
+input[type=range]::-webkit-slider-thumb {
+  -webkit-appearance: none;
+}
+
+input[type=range]:focus {
+  outline: none; /* Removes the blue border. You should probably do some kind of focus styling for accessibility reasons though. */
+}
+
+input[type=range]::-ms-track {
+  width: 100%;
+  cursor: pointer;
+
+  /* Hides the slider so custom styles can be added */
+  background: transparent; 
+  border-color: transparent;
+  color: transparent;
+}
+
+input[type=range]::-webkit-slider-thumb {
+  height: 16px;
+  width: 16px;
+  border: none;
+  border-radius: 0px;
+  background: var(--main_color);
+  cursor: pointer;
+}
+
+/* All the same stuff for Firefox */
+input[type=range]::-moz-range-thumb {
+  height: 16px;
+  width: 16px;
+  border-radius: 0px;
+  border: none;
+  background: var(--main_color);
+  cursor: pointer;
+}
+
+/* All the same stuff for IE */
+input[type=range]::-ms-thumb {
+  height: 16px;
+  width: 16px;
+  border-radius: 0px;
+  border: none;
+  background: var(--main_color);
+  cursor: pointer;
+}
+
+input[type=range]::-webkit-slider-runnable-track {
+  width: 100%;
+  height: 16px;
+  cursor: pointer;
+  background: var(--sub_color);
+  border-radius: 0;
+  border: solid 1px var(--sub_color);
+}
+
+
+input[type=range]::-moz-range-track {
+  background: var(--sub_color);
+  height: 16px;
+}
+
+.error {
+  border-bottom: solid 2px crimson;
 }

@@ -3,6 +3,16 @@ const errWrapper = document.getElementById("errWrapper");
 
 const defaultTheme = [ "#000000cc", "#ccccccff", "#1f9b92ff", "#002b36ff" ];
 
+const bgCol_input = document.getElementById("bg_col_input");
+const fgCol_input = document.getElementById("fg_col_input");
+const mainCol_input = document.getElementById("main_col_input");
+const subCol_input = document.getElementById("sub_col_input");
+
+const bgOp_input = document.getElementById("bg_col_opacity");
+const fgOp_input = document.getElementById("fg_col_opacity");
+const mainOp_input = document.getElementById("main_col_opacity");
+const subOp_input = document.getElementById("sub_col_opacity");
+
 const saveData = {
   username: "",
   theme: defaultTheme,
@@ -25,8 +35,8 @@ }
 
 function loadStorage() {
   saveData.username = localStorage.getItem("username");
-  saveData.theme = JSON.parse(localStorage.getItem("theme"));
-  
+  savedTheme =  JSON.parse(localStorage.getItem("theme"));
+  saveData.theme = savedTheme || defaultTheme;
   const username = document.getElementById("name_entry");
   if (username) {
     username.value = saveData.username;
@@ -34,7 +44,6 @@ }
 }
 
 function saveName() {
-  console.log("saving username");
   const username = document.getElementById("name_entry");
   if (username) {
     saveData.username = username.value;
@@ -44,13 +53,82 @@ }
 
 function setupDiceAutoScroll() {
   const diceWin = document.getElementById("dice_win");
-  diceWin.addEventListener("toggle", e => {
-    if (diceWin.open) {
-      const diceLog = document.getElementById("dice_log");
-      diceLog.children[diceLog.children.length - 1].scrollIntoView();
-    }
-  });
+  if (diceWin) {
+    diceWin.addEventListener("toggle", e => {
+      if (diceWin.open) {
+        const diceLog = document.getElementById("dice_log");
+        diceLog.children[diceLog.children.length - 1].scrollIntoView();
+      }
+    });
+  }
+}
+
+function hexToBytes(hex) {
+    let bytes = [];
+    for (let c = 0; c < hex.length; c += 2)
+        bytes.push(parseInt(hex.substr(c, 2), 16));
+    return bytes;
+}
+
+function toByte(v) {
+  return ('0' + 
+    Math.min(Math.max(parseInt(v), 0), 255).toString(16)
+  ).slice(-2);
+}
+
+function resetTheme(theme) {
+  try{
+    let bg_col = theme[0];
+    let fg_col = theme[1];
+    let main_col = theme[2];
+    let sub_col = theme[3];
+  
+    let fg_opacity = hexToBytes(fg_col.substr(7));
+    fg_col = fg_col.substr(0,7);
+    let bg_opacity = hexToBytes(bg_col.substr(7));
+    bg_col = bg_col.substr(0,7);
+    let main_opacity = hexToBytes(main_col.substr(7));
+    main_col = main_col.substr(0,7);
+    let sub_opacity = hexToBytes(sub_col.substr(7));
+    sub_col = sub_col.substr(0,7);
+  
+    bgCol_input.value = bg_col;
+    bgOp_input.value = bg_opacity;
+    fgCol_input.value = fg_col;
+    fgOp_input.value = fg_opacity;
+    mainCol_input.value = main_col;
+    mainOp_input.value = main_opacity;
+    subCol_input.value = sub_col;
+    subOp_input.value = sub_opacity;
+  } catch {}
+}
+
+function setTheme() {
+  try{
+    let bg_col = bgCol_input.value;
+    let bg_opacity = toByte(bgOp_input.value);
+    let fg_col = fgCol_input.value;
+    let fg_opacity =(toByte(fgOp_input.value));
+    let main_col = mainCol_input.value;
+    let main_opacity = (toByte(mainOp_input.value));
+    let sub_col = subCol_input.value;
+    let sub_opacity = (toByte(subOp_input.value));
+  
+    saveData.theme[0] = bg_col + bg_opacity;
+    saveData.theme[1] = fg_col + fg_opacity;
+    saveData.theme[2] = main_col + main_opacity;
+    saveData.theme[3] = sub_col + sub_opacity;
+  
+    localStorage.setItem("theme", JSON.stringify(saveData.theme));
+  } catch {} finally {
+    document.body.style.setProperty("--bg_color", saveData.theme[0]);
+    document.body.style.setProperty("--fg_color", saveData.theme[1]);
+    document.body.style.setProperty("--main_color", saveData.theme[2]);
+    document.body.style.setProperty("--sub_color", saveData.theme[3]);
+  }
 }
 
 setupDiceAutoScroll();
-loadStorage();+loadStorage();
+resetTheme(saveData.theme);
+setTheme();

@@ -13,13 +13,14 @@ <main id="registration">
 <h1>Felt Admin Registration</h1>
 {{ if $valid }}
   <form action="/register/{{ $cipher }}" method="post">
-  <label>username <input id="username" name="username"/></label>
-  <label>password <input id="password" name="password" type="password"/></label>
+  <label>username <input id="username" name="username" required/></label>
+  <label>password <input id="password" name="password" type="password" required/></label>
   <button type="submit">Register</button>
   </form>
 {{ else }}
-  <p class="error">The registration token you provided is invalid</p>
+  <span class="error">The registration token you provided is invalid;<br/> obtain a new one.</span>
 {{end}}
 </main>
 </body>
+<script src="/table/util.js" type="text/javascript"></script>
 </html>

@@ -14,8 +14,9 @@ <h1>Registration Complete</h1>
   <p>Success! <a href="/table">Let's game!</a></p>
 {{ else }}
   <h1>Error</h1>
-  <p class="error">Something went wrong; please try a different username or obtain a new registration code.</p>
+  <span class="error">Something went wrong; please try a different username or obtain a new registration code.</span>
 {{end}}
 </main>
 </body>
+<script src="/table/util.js" type="text/javascript"></script>
 </html>