diff --git a/lib/uuid.cpp b/lib/uuid.cpp
deleted file mode 100644
index 248836e..0000000
--- a/lib/uuid.cpp
+++ /dev/null
@@ -1,35 +0,0 @@
-#include "uuid.h"
-
-namespace uuid {
-static std::random_device rd;
-static std::mt19937 gen(rd());
-static std::uniform_int_distribution<> dis(0, 15);
-static std::uniform_int_distribution<> dis2(8, 11);
-
-std::string generate_uuid_v4() {
-  std::stringstream ss;
-  int i;
-  ss << std::hex;
-  for (i = 0; i < 8; i++) {
-    ss << dis(gen);
-  }
-  ss << "-";
-  for (i = 0; i < 4; i++) {
-    ss << dis(gen);
-  }
-  ss << "-4";
-  for (i = 0; i < 3; i++) {
-    ss << dis(gen);
-  }
-  ss << "-";
-  ss << dis2(gen);
-  for (i = 0; i < 3; i++) {
-    ss << dis(gen);
-  }
-  ss << "-";
-  for (i = 0; i < 12; i++) {
-    ss << dis(gen);
-  };
-  return ss.str();
-}
-} // namespace uuid
diff --git a/lib/uuid.h b/lib/uuid.h
deleted file mode 100644
index 0f938d6..0000000
--- a/lib/uuid.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef UUID_H
-#define UUID_H
-
-#include <random>
-#include <sstream>
-#include <string>
-
-namespace uuid {
-std::string generate_uuid_v4();
-}
-
-#endif // UUID_H
diff --git a/main.cpp b/main.cpp
index db2ae2b..ac38560 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,14 +1,3 @@
-// Dear ImGui: standalone example application for SDL2 + OpenGL
-// (SDL is a cross-platform general purpose library for handling windows,
-// inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
-
-// Learn about Dear ImGui:
-// - FAQ                  https://dearimgui.com/faq
-// - Getting Started      https://dearimgui.com/getting-started
-// - Documentation        https://dearimgui.com/docs (same as your local docs/
-// folder).
-// - Introduction, links and more at the top of imgui.cpp
-
 #include <SDL2/SDL_events.h>
 #include <SDL2/SDL_scancode.h>
 #include <cstddef>
@@ -106,43 +95,33 @@ Texture ReloadTexture(ImTextureID id, int width, int height) {
     return t;
 }
 
-void rotate90()
-{
-}
-
 void RotateImage(Texture t) {
   int height = t.size.y;
   int width = t.size.x;
   int channels = t.channels;
 
-    const unsigned int sizeBuffer = width * height * channels; 
-    unsigned char *tempBuffer = new unsigned char[sizeBuffer];
+  const unsigned int sizeBuffer = width * height * channels; 
+  unsigned char *tempBuffer = new unsigned char[sizeBuffer];
 
-
-    int nidx = 0;
-    for (int x = 0; x < width; x++)
+  int nidx = 0;
+  for (int x = 0; x < width; x++)
+  {
+    for (int y = height - 1; y >= 0; y--)
     {
-        for (int y = height - 1; y >= 0; y--)
-        {
-          int idx = (x + y * width) * channels;
-          for (int i = 0; i < channels; i++)
-            tempBuffer[nidx + i] = image[idx + i];
+      int idx = (x + y * width) * channels;
+      for (int i = 0; i < channels; i++)
+        tempBuffer[nidx + i] = image[idx + i];
 
-          nidx = nidx + 4;
-        }
+      nidx = nidx + 4;
     }
+  }
 
-    // Copy rotated pixels
-
-    memcpy(image, tempBuffer, sizeBuffer);
-    delete[] tempBuffer;
+  memcpy(image, tempBuffer, sizeBuffer);
+  delete[] tempBuffer;
 }
 
 
-static bool init = true;
-static bool showHelp = false;
-static int mode = 0;
-const int maxAnnotatedTexels = 10000;
+const int MAX_ANNOATED_TEXELS = 10000;
 
 // Main code
 int main(int argc, char* argv[]) {
@@ -156,6 +135,8 @@ int main(int argc, char* argv[]) {
   bool TOOLTIP_ENABLED = false;
   bool GRID_ENABLED = false;
   bool AA_ENABLED = true;
+  bool SHOW_HELP = false;
+  int MODE = 0;
 
   // Decide GL+GLSL versions
 #if defined(IMGUI_IMPL_OPENGL_ES2)
@@ -209,7 +190,6 @@ int main(int argc, char* argv[]) {
 
   // Setup Dear ImGui context
   IMGUI_CHECKVERSION();
-
   ImGui::CreateContext();
   ImGuiIO &io = ImGui::GetIO();
   (void)io;
@@ -218,34 +198,27 @@ int main(int argc, char* argv[]) {
   ImGuiTexInspect::ImplOpenGL3_Init(); // Or DirectX 11 equivalent (check your chosen backend header file)
   ImGuiTexInspect::Init();
   ImGuiTexInspect::CreateContext();
-
   ImGui::StyleColorsDark();
-
   ImGuiStyle &style = ImGui::GetStyle();
-
   ImGui_ImplSDL2_InitForOpenGL(window, gl_context);
   ImGui_ImplOpenGL3_Init(glsl_version);
 
   ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
-
   Texture t;
+  auto flags = ImGuiTexInspect::InspectorFlags_FillVertical | ImGuiTexInspect::InspectorFlags_FillHorizontal;
 
-  if (init) {
-    init = false;
-    try {
-      auto args = argparse::parse<Args>(argc, argv, true);
-      t = LoadTexture(args.fpath.c_str());
-    } catch (const std::runtime_error &e) {
-      std::cerr << "failed to parse arguments: " << e.what() << std::endl;
-      return -1;
-    }
+  try {
+    auto args = argparse::parse<Args>(argc, argv, true);
+    t = LoadTexture(args.fpath.c_str());
+  } catch (const std::runtime_error &e) {
+    std::cerr << "failed to parse arguments: " << e.what() << std::endl;
+    return -1;
   }
 
   // Main loop
   bool done = false;
   while (!done)
   {
-    auto flags = ImGuiTexInspect::InspectorFlags_FillVertical | ImGuiTexInspect::InspectorFlags_FillHorizontal;
 
     // Poll and handle events (inputs, window resize, etc.)
     SDL_Event event;
@@ -373,6 +346,7 @@ int main(int argc, char* argv[]) {
         ImGui::OpenPopup("HelpPopup");
         showHelp = !showHelp;
       }
+
       if (ImGui::BeginPopup("HelpPopup")) {
         ImGui::Text("tview Help");
         ImGui::Separator();