diff --git a/default/!DO-NOT-EDIT-THESE-FILES.txt b/default/!DO-NOT-EDIT-THESE-FILES.txt
new file mode 100644
index 000000000..713bf2ad5
--- /dev/null
+++ b/default/!DO-NOT-EDIT-THESE-FILES.txt
@@ -0,0 +1,13 @@
+These are master copies of the default content files and are managed by SillyTavern.
+
+Editing any of these files would not only have no effect, but will also cause merge conflicts during update pulls.
+
+You should edit their respective copies instead, for example:
+
+1. /default/config.yaml => /config.yaml
+2. /default/public/css/user.css => /public/css/user.css
+etc.
+
+Any questions? You're always welcome at our official documentation website:
+
+https://docs.sillytavern.app/
diff --git a/public/index.html b/public/index.html
index ea1267429..d4fc97b5c 100644
--- a/public/index.html
+++ b/public/index.html
@@ -2000,7 +2000,7 @@
                                             </span>
                                         </div>
                                     </div>
-                                    <div class="range-block" data-source="deepseek,openrouter">
+                                    <div class="range-block" data-source="deepseek,openrouter,custom">
                                         <label for="openai_show_thoughts" class="checkbox_label widthFreeExpand">
                                             <input id="openai_show_thoughts" type="checkbox" />
                                             <span>
@@ -3253,6 +3253,10 @@
                                     <option value="sonar">sonar</option>
                                     <option value="sonar-pro">sonar-pro</option>
                                     <option value="sonar-reasoning">sonar-reasoning</option>
+                                    <option value="sonar-reasoning-pro">sonar-reasoning-pro</option>
+                                </optgroup>
+                                <optgroup label="Offline Models">
+                                    <option value="r1-1776">r1-1776</option>
                                 </optgroup>
                                 <optgroup label="Deprecated Models">
                                     <!-- These are scheduled for deprecation after 2/22/2025 -->
diff --git a/public/scripts/chats.js b/public/scripts/chats.js
index 042030f2c..a6f2432d2 100644
--- a/public/scripts/chats.js
+++ b/public/scripts/chats.js
@@ -1487,7 +1487,7 @@ jQuery(function () {
             ...chat.filter(x => x?.extra?.type !== system_message_types.ASSISTANT_NOTE),
         ];
 
-        download(JSON.stringify(chatToSave, null, 4), `Assistant - ${humanizedDateTime()}.json`, 'application/json');
+        download(chatToSave.map((m) => JSON.stringify(m)).join('\n'), `Assistant - ${humanizedDateTime()}.jsonl`, 'application/json');
     });
 
     // Do not change. #attachFile is added by extension.
diff --git a/public/scripts/openai.js b/public/scripts/openai.js
index 39b3970ad..8e77040cb 100644
--- a/public/scripts/openai.js
+++ b/public/scripts/openai.js
@@ -2167,6 +2167,14 @@ function getStreamingReply(data, state) {
             state.reasoning += (data.choices?.filter(x => x?.delta?.reasoning)?.[0]?.delta?.reasoning || '');
         }
         return data.choices?.[0]?.delta?.content ?? data.choices?.[0]?.message?.content ?? data.choices?.[0]?.text ?? '';
+    } else if (oai_settings.chat_completion_source === chat_completion_sources.CUSTOM) {
+        if (oai_settings.show_thoughts) {
+            state.reasoning +=
+                data.choices?.filter(x => x?.delta?.reasoning_content)?.[0]?.delta?.reasoning_content ??
+                data.choices?.filter(x => x?.delta?.reasoning)?.[0]?.delta?.reasoning ??
+                '';
+        }
+        return data.choices?.[0]?.delta?.content ?? data.choices?.[0]?.message?.content ?? data.choices?.[0]?.text ?? '';
     } else {
         return data.choices?.[0]?.delta?.content ?? data.choices?.[0]?.message?.content ?? data.choices?.[0]?.text ?? '';
     }
@@ -4387,7 +4395,7 @@ async function onModelChange() {
         if (oai_settings.max_context_unlocked) {
             $('#openai_max_context').attr('max', unlocked_max);
         }
-        else if (['sonar', 'sonar-reasoning'].includes(oai_settings.perplexity_model)) {
+        else if (['sonar', 'sonar-reasoning', 'sonar-reasoning-pro', 'r1-1776'].includes(oai_settings.perplexity_model)) {
             $('#openai_max_context').attr('max', 127000);
         }
         else if (['sonar-pro'].includes(oai_settings.perplexity_model)) {
diff --git a/public/scripts/reasoning.js b/public/scripts/reasoning.js
index 44927d83f..815135814 100644
--- a/public/scripts/reasoning.js
+++ b/public/scripts/reasoning.js
@@ -76,6 +76,11 @@ export function extractReasoningFromData(data) {
                     return data?.choices?.[0]?.message?.reasoning ?? '';
                 case chat_completion_sources.MAKERSUITE:
                     return data?.responseContent?.parts?.filter(part => part.thought)?.map(part => part.text)?.join('\n\n') ?? '';
+                case chat_completion_sources.CUSTOM: {
+                    return data?.choices?.[0]?.message?.reasoning_content
+                        ?? data?.choices?.[0]?.message?.reasoning
+                        ?? '';
+                }
             }
             break;
     }
@@ -338,14 +343,15 @@ export class ReasoningHandler {
             return mesChanged;
         }
 
-        if (this.state === ReasoningState.None) {
+        if (this.state === ReasoningState.None || this.#isHiddenReasoningModel) {
             // If streamed message starts with the opening, cut it out and put all inside reasoning
             if (message.mes.startsWith(power_user.reasoning.prefix) && message.mes.length > power_user.reasoning.prefix.length) {
                 this.#isParsingReasoning = true;
 
                 // Manually set starting state here, as we might already have received the ending suffix
                 this.state = ReasoningState.Thinking;
-                this.startTime = this.initialTime;
+                this.startTime = this.startTime ?? this.initialTime;
+                this.endTime = null;
             }
         }
 
diff --git a/public/scripts/tokenizers.js b/public/scripts/tokenizers.js
index 9a4995206..c20ae2706 100644
--- a/public/scripts/tokenizers.js
+++ b/public/scripts/tokenizers.js
@@ -679,7 +679,7 @@ export function getTokenizerModel() {
     }
 
     if (oai_settings.chat_completion_source === chat_completion_sources.PERPLEXITY) {
-        if (oai_settings.perplexity_model.includes('sonar-reasoning')) {
+        if (oai_settings.perplexity_model.includes('sonar-reasoning') || oai_settings.perplexity_model.includes('r1-1776')) {
             return deepseekTokenizer;
         }
         if (oai_settings.perplexity_model.includes('llama-3') || oai_settings.perplexity_model.includes('llama3')) {
diff --git a/public/style.css b/public/style.css
index 6278d9960..bafc9e288 100644
--- a/public/style.css
+++ b/public/style.css
@@ -55,6 +55,10 @@
     --interactable-outline-color: var(--white100);
     --interactable-outline-color-faint: var(--white20a);
 
+    --reasoning-body-color: var(--SmartThemeEmColor);
+    --reasoning-em-color: color-mix(in srgb, var(--SmartThemeEmColor) 67%, var(--SmartThemeBlurTintColor) 33%);
+    --reasoning-saturation: 0.5;
+
 
     /*Default Theme, will be changed by ToolCool Color Picker*/
     --SmartThemeBodyColor: rgb(220, 220, 210);
@@ -348,13 +352,13 @@ input[type='checkbox']:focus-visible {
 
 .mes_reasoning {
     display: block;
-    border-left: 2px solid var(--SmartThemeEmColor);
+    border-left: 2px solid var(--reasoning-body-color);
     border-radius: 2px;
     padding: 5px;
     padding-left: 14px;
     margin-bottom: 0.5em;
     overflow-y: auto;
-    color: var(--SmartThemeEmColor);
+    color: hsl(from var(--reasoning-body-color) h calc(s * var(--reasoning-saturation)) l);
 }
 
 .mes_reasoning_details {
@@ -374,18 +378,6 @@ input[type='checkbox']:focus-visible {
     margin-bottom: 0;
 }
 
-.mes_reasoning em,
-.mes_reasoning i,
-.mes_reasoning u,
-.mes_reasoning q,
-.mes_reasoning blockquote {
-    filter: saturate(0.5);
-}
-
-.mes_reasoning_details .mes_reasoning em {
-    color: color-mix(in srgb, var(--SmartThemeEmColor) 67%, var(--SmartThemeBlurTintColor) 33%);
-}
-
 .mes_reasoning_header_block {
     flex-grow: 1;
 }
@@ -461,26 +453,36 @@ input[type='checkbox']:focus-visible {
 }
 
 .mes_text i,
-.mes_text em,
+.mes_text em {
+    color: var(--SmartThemeEmColor);
+}
 .mes_reasoning i,
 .mes_reasoning em {
-    color: var(--SmartThemeEmColor);
+    color: hsl(from var(--reasoning-em-color) h calc(s * var(--reasoning-saturation)) l);
 }
 
 .mes_text q i,
 .mes_text q em {
     color: inherit;
 }
-
-.mes_text u,
-.mes_reasoning u {
-    color: var(--SmartThemeUnderlineColor);
+.mes_reasoning q i,
+.mes_reasoning q em {
+    color: hsl(from var(--SmartThemeQuoteColor) h calc(s * var(--reasoning-saturation)) l);
 }
 
-.mes_text q,
-.mes_reasoning q {
+.mes_text u {
+    color: var(--SmartThemeUnderlineColor);
+}
+.mes_reasoning u {
+    color: hsl(from var(--SmartThemeUnderlineColor) h calc(s * var(--reasoning-saturation)) l);
+}
+
+.mes_text q {
     color: var(--SmartThemeQuoteColor);
 }
+.mes_reasoning q {
+    color: hsl(from var(--SmartThemeQuoteColor) h calc(s * var(--reasoning-saturation)) l);
+}
 
 .mes_text font[color] em,
 .mes_text font[color] i,
diff --git a/server.js b/server.js
index 201710cc6..678ec8949 100644
--- a/server.js
+++ b/server.js
@@ -244,7 +244,6 @@ const cliArguments = yargs(hideBin(process.argv))
         describe: 'Request proxy URL (HTTP or SOCKS protocols)',
     }).option('requestProxyBypass', {
         type: 'array',
-        default: null,
         describe: 'Request proxy bypass list (space separated list of hosts)',
     }).parseSync();