diff --git a/basegraph.cpp b/basegraph.cpp
index 448926ba..b1a7c32e 100644
--- a/basegraph.cpp
+++ b/basegraph.cpp
@@ -8,8 +8,6 @@
 #include "hyper.h"
 namespace hr {
 
-EX int fontscale = 100;
-
 #if HDR
 /** configuration of the current view */
 struct display_data {
@@ -1035,48 +1033,103 @@ EX void displayColorButton(int x, int y, const string& name, int key, int align,
 ld textscale() { 
   return vid.fsize / (current_display->radius * cgi.crossf) * (1+pconf.alpha) * 2;
   }
-  
-EX bool setfsize = true;
 
-EX bool vsync_off;
-
-EX void do_setfsize() {
+EX void compute_fsize() {
+  println(hlog, "compute_fsize() called");
   dual::split_or_do([&] {
-    vid.fsize = min(vid.yres * fontscale/ 3200, vid.xres * fontscale/ 4800), setfsize = false;
+    if(vid.relative_font)
+      vid.fsize = min(vid.yres * vid.fontscale/ 3200, vid.xres * vid.fontscale/ 4800);
+    else
+      vid.fsize = vid.abs_fsize;
+    println(hlog, "set fsize to ", vid.fsize);
+    if(vid.fsize < 6) vid.fsize = 6;
     });
   }
 
-EX void disable_vsync() {
-#if CAP_SDL && CAP_GL && !ISMOBWEB
-  SDL_GL_SetAttribute( SDL_GL_SWAP_CONTROL, 0 ); 
-#endif
+EX bool graphics_on;
+
+EX bool want_vsync() {
+  if(vrhr::active())
+    return false;
+  return vid.want_vsync;
   }
+
+EX bool need_to_apply_screen_settings() {
+  if(vid.want_fullscreen != vid.full)
+    return true;
+  if(make_pair(vid.xres, vid.yres) != get_requested_resolution())
+    return true;
+  if(vid.want_antialias != vid.antialias)
+    return true;
+  if(vid.wantGL != vid.usingGL)
+    return true;
+  if(want_vsync() != vid.current_vsync)
+    return true;
+  return false;
+  }
+
+EX void apply_screen_settings() {
+  if(!need_to_apply_screen_settings()) return;
+  if(!graphics_on) return;
+ 
+#if ISANDROID
+  if(vid.full != vid.want_fullscreen)
+    addMessage(XLAT("Reenter HyperRogue to apply this setting"));
+#endif
   
+  SDL_QuitSubSystem(SDL_INIT_VIDEO);
+  graphics_on = false;
+  android_settings_changed();
+  init_graph();
+  if(vid.usingGL) {
+    glhr::be_textured(); glhr::be_nontextured();
+    }
+  }
+
+EX pair<int, int> get_requested_resolution() {
+  if(vid.want_fullscreen && vid.change_fullscr)
+    return { vid.fullscreen_x, vid.fullscreen_y };
+  else if(vid.want_fullscreen)
+    return { vid.xres = vid.xscr, vid.yres = vid.yscr };
+  else if(vid.relative_window_size)
+    return { vid.xscr * vid.window_rel_x + .5, vid.yscr * vid.window_rel_y + .5 };
+  else
+    return { vid.window_x, vid.window_y };
+  }
+
 #if CAP_SDL
 EX void setvideomode() {
 
   DEBBI(DF_INIT | DF_GRAPH, ("setvideomode"));
   
-  if(!vid.full) {
-    if(vid.xres > vid.xscr) vid.xres = vid.xscr * 9/10, setfsize = true;
-    if(vid.yres > vid.yscr) vid.yres = vid.yscr * 9/10, setfsize = true;    
-    }
+  vid.full = vid.want_fullscreen;
   
-  if(setfsize) do_setfsize();
+  tie(vid.xres, vid.yres) = get_requested_resolution();
+    
+  compute_fsize();
 
   int flags = 0;
   
+  vid.antialias = vid.want_antialias;
+    
 #if CAP_GL
+  vid.usingGL = vid.wantGL;
   if(vid.usingGL) {
     flags = SDL_OPENGL | SDL_HWSURFACE;
     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
     SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 1);
-    if(vsync_off) disable_vsync();
+    vid.current_vsync = want_vsync();
+    if(vid.current_vsync) 
+      SDL_GL_SetAttribute( SDL_GL_SWAP_CONTROL, 1 );
+    else
+      SDL_GL_SetAttribute( SDL_GL_SWAP_CONTROL, 0 ); 
     if(vid.antialias & AA_MULTI) {
       SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
       SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, (vid.antialias & AA_MULTI16) ? 16 : 4);
       }
     }
+#else
+  vid.usingGL = false;
 #endif
 
   int sizeflag = (vid.full ? SDL_FULLSCREEN : SDL_RESIZABLE);
@@ -1103,7 +1156,7 @@ EX void setvideomode() {
   if(vid.full && !s) {
     vid.xres = vid.xscr;
     vid.yres = vid.yscr;
-    do_setfsize();
+    vid.fsize = 10;
     s = s_screen = SDL_SetVideoMode(vid.xres, vid.yres, 32, flags | SDL_FULLSCREEN);
     }
 
@@ -1138,7 +1191,80 @@ EX void setvideomode() {
 
 EX bool noGUI = false;
 
-EX void initgraph() {
+#if CAP_SDL
+EX bool sdl_on = false;
+EX int SDL_Init1(Uint32 flags) {
+  if(!sdl_on) {
+    sdl_on = true;
+    return SDL_Init(flags);
+    }
+  else  
+    return SDL_InitSubSystem(flags);
+  }
+#endif
+
+EX void init_font() {
+#if CAP_SDLTTF
+  if(TTF_Init() != 0) {
+    printf("Failed to initialize TTF.\n");
+    exit(2);
+    }
+#endif
+  }
+
+EX void close_font() {
+#if CAP_SDLTTF
+  for(int i=0; i<=max_font_size; i++) if(font[i]) TTF_CloseFont(font[i]);
+  TTF_Quit();
+#endif
+#if CAL_GLFONT
+  for(int i=0; i<=max_glfont_size; i++) if(glfont[i]) delete glfont[i];
+#endif
+  }
+
+EX void init_graph() {
+#if CAP_SDL
+  if (SDL_Init1(SDL_INIT_VIDEO) == -1)
+  {
+    printf("Failed to initialize video.\n");
+    exit(2);
+  }
+  graphics_on = true;
+
+#if ISWEB
+  get_canvas_size();
+#else
+  if(!vid.xscr) {
+    const SDL_VideoInfo *inf = SDL_GetVideoInfo();
+    vid.xscr = vid.xres = inf->current_w;
+    vid.yscr = vid.yres = inf->current_h;
+    }
+#endif
+
+#ifdef CUSTOM_CAPTION  
+  SDL_WM_SetCaption(CUSTOM_CAPTION, CUSTOM_CAPTION);
+#else
+  SDL_WM_SetCaption("HyperRogue " VER, "HyperRogue " VER);
+#endif
+#endif
+  
+#if CAP_SDL
+  setvideomode();
+  if(!s) {
+    printf("Failed to initialize graphics.\n");
+    exit(2);
+    }
+    
+  SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
+  SDL_EnableUNICODE(1);
+#endif  
+
+#if ISANDROID
+  vid.full = vid.want_fullscreen;
+#endif
+  }
+
+EX void initialize_all() {
 
   DEBBI(DF_INIT | DF_GRAPH, ("initgraph"));
   
@@ -1157,28 +1283,6 @@ EX void initgraph() {
     return;
     }
 
-#if CAP_SDL
-  if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) == -1)
-  {
-    printf("Failed to initialize video.\n");
-    exit(2);
-  }
-
-#if ISWEB
-  get_canvas_size();
-#else
-  const SDL_VideoInfo *inf = SDL_GetVideoInfo();
-  vid.xscr = vid.xres = inf->current_w;
-  vid.yscr = vid.yres = inf->current_h;
-#endif
-
-#ifdef CUSTOM_CAPTION  
-  SDL_WM_SetCaption(CUSTOM_CAPTION, CUSTOM_CAPTION);
-#else
-  SDL_WM_SetCaption("HyperRogue " VER, "HyperRogue " VER);
-#endif
-#endif
-  
   preparesort();
 #if CAP_CONFIG
   loadConfig();
@@ -1191,26 +1295,12 @@ EX void initgraph() {
 #if CAP_COMMANDLINE
   arg::read(2);
 #endif
+
+  init_graph();
   check_cgi();
   cgi.require_basics();
-
-#if CAP_SDL
-  setvideomode();
-  if(!s) {
-    printf("Failed to initialize graphics.\n");
-    exit(2);
-    }
-    
-  SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
-  SDL_EnableUNICODE(1);
-#endif
   
-#if CAP_SDLTTF
-  if(TTF_Init() != 0) {
-    printf("Failed to initialize TTF.\n");
-    exit(2);
-    }
-#endif
+  init_font();
 
 #if CAP_SDLJOY  
   initJoysticks();
@@ -1219,22 +1309,16 @@ EX void initgraph() {
 #if CAP_SDLAUDIO
   initAudio();
 #endif
-    
   }
 
-EX void cleargraph() {
+EX void quit_all() {
   DEBBI(DF_INIT, ("clear graph"));
-#if CAP_SDLTTF
-  for(int i=0; i<256; i++) if(font[i]) TTF_CloseFont(font[i]);
-#endif
-#if CAL_GLFONT
-  for(int i=0; i<128; i++) if(glfont[i]) delete glfont[i];
-#endif
 #if CAP_SDLJOY
   closeJoysticks();
 #endif
 #if CAP_SDL
   SDL_Quit();
+  sdl_on = false;
 #endif
   }
 
diff --git a/config.cpp b/config.cpp
index 48566e0f..a9772b09 100644
--- a/config.cpp
+++ b/config.cpp
@@ -476,11 +476,11 @@ EX videopar vid;
 #define DEFAULT_WALLMODE (ISMOBILE ? 3 : 5)
 #define DEFAULT_MONMODE  (ISMOBILE ? 2 : 4)
 
-#if ISANDROID
-#define ANDROID_SETTINGS settingsChanged = true;
-#else
-#define ANDROID_SETTINGS ;
-#endif
+EX void android_settings_changed() {
+  #if ISANDROID
+  settingsChanged = true;
+  #endif
+  }
 
 extern color_t floorcolors[landtypes];
 
@@ -619,7 +619,19 @@ EX void initConfig() {
 
   param_i(vid.msglimit, "message limit", 5);
   param_i(vid.timeformat, "message log time format", 0);
-  param_i(fontscale, "fontscale", 100);
+
+  param_b(vid.relative_font, "relative_font", true)
+  -> editable("set relative font size", 'r')
+  -> set_reaction(compute_fsize);
+  param_i(vid.fontscale, "fontscale", 100)
+  -> editable(25, 400, 10, "font scale", "", 'b')
+  -> set_reaction(compute_fsize)
+  -> set_sets([] { dialog::bound_low(0); });
+
+  param_i(vid.abs_fsize, "fsize", 12)
+  -> editable(1, 72, 1, "font size", "", 'b')
+  -> set_reaction(compute_fsize)
+  -> set_sets([] { dialog::bound_low(0); });
 
   param_i(vid.mobilecompasssize, "mobile compass size", 0); // ISMOBILE || ISPANDORA ? 30 : 0);
   param_i(vid.radarsize, "radarsize size", 120);
@@ -655,8 +667,11 @@ EX void initConfig() {
   
   // basic graphics
   
-  addsaver(vid.usingGL, "usingGL", true);
-  addsaver(vid.antialias, "antialias", AA_NOGL | AA_FONT | (ISWEB ? AA_MULTI : AA_LINES) | AA_LINEWIDTH | AA_VERSION);
+  param_b(vid.wantGL, "usingGL", true)
+  ->editable("openGL mode", 'o');
+  
+  addsaver(vid.want_antialias, "antialias", AA_NOGL | AA_FONT | (ISWEB ? AA_MULTI : AA_LINES) | AA_VERSION);
+  addsaver(vid.fineline, "fineline", true);
   param_f(vid.linewidth, "linewidth", 1);
   addsaver(precise_width, "precisewidth", .5);
   addsaver(perfect_linewidth, "perfect_linewidth", 1);
@@ -664,7 +679,6 @@ EX void initConfig() {
   addsaver(fat_edges, "fat-edges");
   param_f(vid.sspeed, "sspeed", "scrollingspeed", 0);
   param_f(vid.mspeed, "mspeed", "movement speed", 1);
-  addsaver(vid.full, "fullscreen", false);
   addsaver(vid.aurastr, "aura strength", ISMOBILE ? 0 : 128);
   addsaver(vid.aurasmoothen, "aura smoothen", 5);
   param_enum(vid.graphglyph, "graphglyph", "graphical items/kills", 1)
@@ -675,9 +689,44 @@ EX void initConfig() {
  
   addsaver(vid.particles, "extra effects", 1);
   param_i(vid.framelimit, "frame limit", 999);
-  addsaver(vid.xres, "xres");
-  addsaver(vid.yres, "yres");
-  param_i(vid.fsize, "font size");
+
+  param_b(vid.want_vsync, "vsync", true)
+  ->editable("vsync", 'v');
+  
+  param_b(vid.want_fullscreen, "fullscreen", false)
+  ->editable("fullscreen mode", 'f');
+  param_b(vid.change_fullscr, "fullscreen_change", false)
+  ->editable("use specific fullscreen resolution", 'g');
+  param_b(vid.relative_window_size, "window_relative", true)
+  ->editable("specify relative window size", 'g');
+
+  param_custom(vid.xres, "xres", [] (char ch) {}, 0);
+  param_custom(vid.yres, "yres", [] (char ch) {}, 0);
+  
+  param_i(vid.fullscreen_x, "fullscreen_x", 1280)
+  -> editable(640, 3840, 640, "fullscreen resolution to use (X)", "", 'x')
+  -> set_sets([] { dialog::bound_low(640); });
+  
+  param_i(vid.fullscreen_y, "fullscreen_y", 1024)
+  -> editable(480, 2160, 480, "fullscreen resolution to use (X)", "", 'x')
+  -> set_sets([] { dialog::bound_low(480); });
+
+  param_i(vid.window_x, "window_x", 1280)
+  -> editable(160, 3840, 160, "window resolution to use (X)", "", 'x')
+  -> set_sets([] { dialog::bound_low(160); });
+
+  param_i(vid.window_y, "window_y", 1024)
+  -> editable(120, 2160, 120, "window resolution to use (Y)", "", 'x')
+  -> set_sets([] { dialog::bound_low(120); });
+
+  param_f(vid.window_rel_x, "window_rel_x", .9)
+  -> editable(.1, 1, .1, "screen size percentage to use (X)", "", 'x')
+  -> set_sets([] { dialog::bound_low(.1); });
+
+  param_f(vid.window_rel_y, "window_rel_y", .9)
+  -> editable(.1, 1, .1, "screen size percentage to use (X)", "", 'x')
+  -> set_sets([] { dialog::bound_low(.1); });
+
   param_b(vid.darkhepta, "mark heptagons", false);
   
   for(auto& lp: linepatterns::patterns) {
@@ -1389,24 +1438,21 @@ EX void show_vector_settings() {
        vid.usingGL ? "" : XLAT("Line width setting is only taken into account in OpenGL."));
      });
 
-  dialog::addSelItem(XLAT("line quality"), its(vid.linequality), 'L');
+  dialog::addSelItem(XLAT("line quality"), its(vid.linequality), 'l');
   dialog::add_action([] {
     dialog::editNumber(vid.linequality, -3, 5, 1, 1, XLAT("line quality"), 
       XLAT("Higher numbers make the curved lines smoother, but reduce the performance."));
     });
 
-  dialog::addBoolItem("finer lines at the boundary", vid.antialias & AA_LINEWIDTH, 'O');
-  dialog::add_action([] () { 
-    vid.antialias ^= AA_LINEWIDTH; 
-    });
-
-  dialog::addBoolItem("perfect width", perfect_linewidth == 2, 'P');
+  dialog::addBoolItem("perfect width", perfect_linewidth == 2, 'p');
   if(perfect_linewidth == 1) 
     dialog::lastItem().value = XLAT("shots only");
   dialog::add_action([] { perfect_linewidth = (1 + perfect_linewidth) % 3; });
 
-  if(vid.antialias & AA_LINEWIDTH) {
-    dialog::addSelItem("variable width", fts(precise_width), 'M');
+  dialog::addBoolItem_action("finer lines at the boundary", vid.fineline, 'O');
+
+  if(vid.fineline) {
+    dialog::addSelItem("variable width", fts(precise_width), 'm');
     dialog::add_action([] () {
       dialog::editNumber(precise_width, 0, 2, 0.1, 0.5, 
         XLAT("variable width"), XLAT("lines longer than this value will be split into shorter lines, with width computed separately for each of them.")
@@ -1419,11 +1465,11 @@ EX void show_vector_settings() {
   dialog::addBreak(100);
   dialog::addInfo(XLAT("hint: press Alt while testing modes"));
   dialog::addBreak(100);
-  dialog::addBoolItem_action(XLAT("disable shadows"), noshadow, 'F');
-  dialog::addBoolItem_action(XLAT("bright mode"), bright, 'G');
-  dialog::addBoolItem_action(XLAT("colorblind simulation"), cblind, 'H');
+  dialog::addBoolItem_action(XLAT("disable shadows"), noshadow, 'f');
+  dialog::addBoolItem_action(XLAT("bright mode"), bright, 'g');
+  dialog::addBoolItem_action(XLAT("colorblind simulation"), cblind, 'h');
 
-  dialog::addBoolItem_action(XLAT("no fill in neon mode"), neon_nofill, 'N');
+  dialog::addBoolItem_action(XLAT("no fill in neon mode"), neon_nofill, 'n');
 
   dialog::addBreak(50);
   dialog::addBack();
@@ -1436,19 +1482,76 @@ EX void showGraphConfig() {
 
   dialog::init(XLAT("graphics configuration"));
 
+#if !ISIOS && !ISWEB
+  add_edit(vid.want_fullscreen);
+  
+  if(vid.want_fullscreen) {
+    add_edit(vid.change_fullscr);
+    if(vid.change_fullscr)
+      add_edit(vid.fullscreen_x), add_edit(vid.fullscreen_y);
+    else
+      dialog::addBreak(200);
+    }
+  else {
+    add_edit(vid.relative_window_size);
+    if(vid.relative_window_size)
+      add_edit(vid.window_rel_x), add_edit(vid.window_rel_y);
+    else
+      add_edit(vid.window_x), add_edit(vid.window_y);
+    }        
+#endif
+
   #if CAP_GLORNOT
-  dialog::addBoolItem(XLAT("openGL mode"), vid.usingGL, 'o');
+  add_edit(vid.wantGL);  
   #endif
 
-  if(!vid.usingGL)
-    dialog::addBoolItem(XLAT("anti-aliasing"), vid.antialias & AA_NOGL, 'O');
-
-  if(vid.usingGL)
+  if(!vid.usingGL) {
+    dialog::addBoolItem(XLAT("anti-aliasing"), vid.want_antialias & AA_NOGL, 'O');
+    dialog::add_action([] {
+      if(!vid.usingGL)
+        vid.want_antialias ^= AA_NOGL | AA_FONT;
+      });
+    }
+  else {
     dialog::addSelItem(XLAT("anti-aliasing"), 
-      (vid.antialias & AA_POLY) ? "polygons" :
-      (vid.antialias & AA_LINES) ? "lines" :
-      (vid.antialias & AA_MULTI) ? "multisampling" :
+      (vid.want_antialias & AA_POLY) ? "polygons" :
+      (vid.want_antialias & AA_LINES) ? "lines" :
+      (vid.want_antialias & AA_MULTI) ? "multisampling" :
       "NO", 'O');
+    dialog::add_action([] {
+      if(vid.want_antialias & AA_MULTI)
+        vid.want_antialias ^= AA_MULTI;
+      else if(vid.want_antialias & AA_POLY)
+        vid.want_antialias ^= AA_POLY | AA_LINES | AA_MULTI;
+      else if(vid.want_antialias & AA_LINES) 
+        vid.want_antialias |= AA_POLY;
+      else 
+        vid.want_antialias |= AA_LINES;
+      });
+    }
+
+  if(vid.usingGL) {
+    if(vrhr::active())
+      dialog::addInfo(XLAT("(vsync disabled in VR)"));
+    else
+      add_edit(vid.want_vsync);
+    }
+  else
+    dialog::addBreak(100);
+
+  if(need_to_apply_screen_settings()) {
+    dialog::addItem(XLAT("apply changes"), 'A');
+    dialog::add_action(apply_screen_settings);
+    dialog::addBreak(100);
+    }
+  else
+    dialog::addBreak(200);  
+
+  add_edit(vid.relative_font);
+  if(vid.relative_font) 
+    add_edit(vid.fontscale);
+  else
+    add_edit(vid.abs_fsize);
 
   dialog::addSelItem(XLAT("vector settings"), XLAT("width") + " " + fts(vid.linewidth), 'w');
   dialog::add_action_push(show_vector_settings);
@@ -1458,11 +1561,7 @@ EX void showGraphConfig() {
   if(getcstat == 'l') 
     mouseovers = XLAT("Reduce the framerate limit to conserve CPU energy");
   #endif
-
-#if !ISIOS && !ISWEB
-  dialog::addBoolItem(XLAT("fullscreen mode"), (vid.full), 'f');
-#endif
-
+  
   dialog::addSelItem(XLAT("scrolling speed"), fts(vid.sspeed), 'a');
 
   dialog::addSelItem(XLAT("camera movement speed"), fts(camera_speed), 'c');
@@ -1489,8 +1588,6 @@ EX void showGraphConfig() {
   keyhandler = [] (int sym, int uni) {
     dialog::handleNavigation(sym, uni);
   
-    if(uni == 'O') uni = 'o', shiftmul = -1;
-    
     char xuni = uni | 96;
   
     if((uni >= 32 && uni < 64) || uni == 'L' || uni == 'C') xuni = uni;
@@ -1507,30 +1604,6 @@ EX void showGraphConfig() {
       XLAT("movement animation speed"),
       XLAT("+5 = move instantly"));
   
-    else if(xuni == 'f') switchFullscreen();
-  
-  #if CAP_GLORNOT
-    else if(xuni == 'o' && shiftmul > 0) switchGL();
-  #endif
-  
-    else if(xuni == 'o' && shiftmul < 0) {
-      if(!vid.usingGL)
-        vid.antialias ^= AA_NOGL | AA_FONT;
-      else if(vid.antialias & AA_MULTI)
-        vid.antialias ^= AA_MULTI;
-      else if(vid.antialias & AA_POLY)
-        vid.antialias ^= AA_POLY | AA_LINES | AA_MULTI;
-      else if(vid.antialias & AA_LINES) 
-        vid.antialias |= AA_POLY;
-      else 
-        vid.antialias |= AA_LINES;
-#if CAP_SDL
-      setvideomode();
-#endif
-      }
-    
-    // if(xuni == 'b') vid.antialias ^= AA_LINEWIDTH;
-   
   #if CAP_FRAMELIMIT    
     else if(xuni == 'l') {
       dialog::editNumber(vid.framelimit, 5, 300, 10, 300, XLAT("framerate limit"), "");
@@ -1545,36 +1618,6 @@ EX void showGraphConfig() {
     };
   }
   
-EX void switchFullscreen() {
-  vid.full = !vid.full;
-#if ISANDROID
-  addMessage(XLAT("Reenter HyperRogue to apply this setting"));
-  ANDROID_SETTINGS
-#endif
-#if CAP_SDL
-  if(true) {
-    vid.xres = vid.full ? vid.xscr : 9999;
-    vid.yres = vid.full ? vid.yscr : 9999;
-    extern bool setfsize;
-    setfsize = true;
-    }
-  setvideomode();
-#endif
-  }
-
-EX void switchGL() {
-  vid.usingGL = !vid.usingGL;
-  if(vid.usingGL) addMessage(XLAT("openGL mode enabled"));
-  if(!vid.usingGL) addMessage(XLAT("openGL mode disabled"));
-  ANDROID_SETTINGS;
-#if CAP_SDL
-  setvideomode();
-  if(vid.usingGL) {
-    glhr::be_textured(); glhr::be_nontextured();
-    }
-#endif
-  }
-
 EX void edit_whatever(char type, int index) {
   if(type == 'f') {
     dialog::editNumber(whatever[index], -10, 10, 1, 0, XLAT("whatever"), 
@@ -1660,14 +1703,6 @@ EX void configureInterface() {
   
   add_edit(vid.msgleft);
   
-  dialog::addSelItem(XLAT("font scale"), its(fontscale), 'b');
-  dialog::add_action([] {
-    dialog::editNumber(fontscale, 25, 400, 10, 100, XLAT("font scale"), "");
-    const int minfontscale = ISMOBILE ? 50 : 25;
-    dialog::reaction = [] () { setfsize = true; do_setfsize(); };
-    dialog::bound_low(minfontscale);
-    });  
-  
   add_edit(glyphsortorder);
   add_edit(vid.graphglyph);
 
@@ -2576,12 +2611,12 @@ EX void selectLanguageScreen() {
     
     if(uni == '0') {
       vid.language = -1;
-      ANDROID_SETTINGS;
+      android_settings_changed();
       }
 
     else if(uni >= 'a' && uni < 'a'+NUMLAN) {
       vid.language = uni - 'a';
-      ANDROID_SETTINGS;
+      android_settings_changed();
       }
     
     else if(doexiton(sym, uni))
@@ -2846,7 +2881,7 @@ EX int read_config_args() {
 
   if(argis("-c")) { PHASE(1); shift(); conffile = argcs(); }
 // change the configuration from the command line
-  else if(argis("-aa")) { PHASEFROM(2); shift(); vid.antialias = argi(); }
+  else if(argis("-aa")) { PHASEFROM(2); shift(); vid.want_antialias = argi(); apply_screen_settings(); }
   else if(argis("-lw")) { PHASEFROM(2); shift_arg_formula(vid.linewidth); }
   else if(argis("-wm")) { PHASEFROM(2); shift(); vid.wallmode = argi(); }
   else if(argis("-mm")) { PHASEFROM(2); shift(); vid.monmode = argi(); }
@@ -2858,10 +2893,8 @@ EX int read_config_args() {
 
 // non-configurable options
   else if(argis("-vsync_off")) {
-    #if CAP_SDL && CAP_GL
-    vsync_off = true;
-    if(curphase == 3) setvideomode();
-    #endif
+    vid.want_vsync = false;
+    apply_screen_settings();
     }
   else if(argis("-aura")) {
     PHASEFROM(2);
@@ -2923,7 +2956,7 @@ EX int read_config_args() {
     sscanf(argcs(), "%dx%dx%d", &clWidth, &clHeight, &clFont);
     if(clWidth) vid.xres = clWidth;
     if(clHeight) vid.yres = clHeight;
-    if(clFont) vid.fsize = clFont;
+    if(clFont) vid.abs_fsize = clFont, vid.relative_font = true;
     }    
   else if(argis("-msm")) {
     PHASEFROM(2); memory_saving_mode = true;
@@ -2969,8 +3002,8 @@ EX int read_config_args() {
   else if(argis("-msens")) {
     PHASEFROM(2); shift_arg_formula(mouseaim_sensitivity);
     }
-  TOGGLE('o', vid.usingGL, switchGL())
-  TOGGLE('f', vid.full, switchFullscreen())
+  TOGGLE('o', vid.usingGL, apply_screen_settings())
+  TOGGLE('f', vid.want_fullscreen, apply_screen_settings())
   else if(argis("-noshaders")) {
     PHASE(1);
     glhr::noshaders = true; 
diff --git a/control.cpp b/control.cpp
index 8f0e10ce..3a801a75 100644
--- a/control.cpp
+++ b/control.cpp
@@ -212,6 +212,14 @@ EX SDL_Joystick* sticks[8];
 EX int numsticks;
 
 EX void initJoysticks() {
+
+  if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) == -1)
+  {
+    printf("Failed to initialize joysticks.\n");
+    numsticks = 0;
+    return;
+  }
+
   DEBB(DF_INIT, ("init joysticks"));
   numsticks = SDL_NumJoysticks();
   if(numsticks > 8) numsticks = 8;
@@ -652,12 +660,17 @@ int cframelimit = 1000;
 
 EX void resize_screen_to(int x, int y) {
   dual::split_or_do([&] {
-    vid.xres = x;
-    vid.yres = y;
     vid.killreduction = 0;
+    if(vid.want_fullscreen) return;
+    if(vid.relative_window_size) {
+      vid.window_rel_x = x * 1. / vid.xscr;
+      vid.window_rel_y = y * 1. / vid.yscr;
+      }
+    else {
+      vid.window_x = x;
+      vid.window_y = y;
+      }
     });
-  extern bool setfsize;
-  setfsize = true;
   setvideomode();
   }
 
@@ -963,7 +976,8 @@ EX void handle_event(SDL_Event& ev) {
       numlock_on = ev.key.keysym.mod & KMOD_NUM;
       if(sym == SDLK_RETURN && (ev.key.keysym.mod & (KMOD_LALT | KMOD_RALT))) {
         sym = 0; uni = 0;
-        switchFullscreen();
+        vid.want_fullscreen = !vid.want_fullscreen;
+        apply_screen_settings();
         }
       }
     
diff --git a/drawing.cpp b/drawing.cpp
index 6f0399b5..7e9d0282 100644
--- a/drawing.cpp
+++ b/drawing.cpp
@@ -790,7 +790,7 @@ EX ld scale_at(const shiftmatrix& T) {
 EX int perfect_linewidth = 1;
 
 EX ld linewidthat(const shiftpoint& h) {
-  if(!(vid.antialias & AA_LINEWIDTH)) return 1;
+  if(!vid.fineline) return 1;
   else if(hyperbolic && pmodel == mdDisk && pconf.alpha == 1 && !ISWEB && !flat_on) {
     double dz = h[LDIM];
     if(dz < 1) return 1;
diff --git a/history.cpp b/history.cpp
index 0d863b91..eda40bf3 100644
--- a/history.cpp
+++ b/history.cpp
@@ -89,8 +89,9 @@ namespace spiral {
     velx=1; vely=1;
     bool dosave = false;
 
-    bool saveGL = vid.usingGL;
-    if(saveGL) switchGL(); //  { vid.usingGL = false; setvideomode(); }
+    bool saveGL = vid.wantGL;
+    vid.wantGL = false;
+    apply_screen_settings();
 
     while(true) {
 
@@ -138,7 +139,8 @@ namespace spiral {
     
     breakloop:
     quickmap.clear();
-    if(saveGL) switchGL(); // { vid.usingGL = true; setvideomode(); }
+    vid.wantGL = saveGL;
+    apply_screen_settings();
     }
 
   }
diff --git a/hyper.h b/hyper.h
index 84735bac..3d609f49 100644
--- a/hyper.h
+++ b/hyper.h
@@ -300,7 +300,12 @@ struct videopar {
   
   int linequality;
 
+  bool want_fullscreen;
   bool full;
+  bool change_fullscr;
+  bool relative_window_size;
+  bool want_vsync;
+  bool current_vsync;
   
   int graphglyph; // graphical glyphs
   bool darkhepta;
@@ -310,10 +315,15 @@ struct videopar {
   
   int xscr, yscr;
   
+  int fullscreen_x, fullscreen_y;
+  int window_x, window_y;
+  ld window_rel_x, window_rel_y;
+  
   bool grid;
   bool particles;
   
-  int fsize;
+  bool relative_font;
+  int fsize, abs_fsize, fontscale;
   int flashtime;
   
   int wallmode, monmode, axes, highlightmode;
@@ -322,13 +332,16 @@ struct videopar {
   
   int msgleft, msglimit;
 
+  bool wantGL;
+  int want_antialias;
+  bool fineline;
+  
   bool usingGL;
   int antialias;
   #define AA_NOGL      1
   #define AA_VERSION   2
   #define AA_LINES     4
   #define AA_POLY      8
-  #define AA_LINEWIDTH 16
   #define AA_FONT      32
   #define AA_MULTI     64
   #define AA_MULTI16   128 // not configurable
diff --git a/legacy.cpp b/legacy.cpp
index b9f1f005..c65624ff 100644
--- a/legacy.cpp
+++ b/legacy.cpp
@@ -51,10 +51,10 @@ void loadOldConfig(FILE *f) {
   if(err == 4) {
     vid.scale = a; pconf.alpha = c; vid.sspeed = d;
     }
-  err=fscanf(f, "%d%d%d%d%d%d%d", &vid.wallmode, &vid.monmode, &vid.axes, &musicvolume, &vid.framelimit, &gl, &vid.antialias);
+  err=fscanf(f, "%d%d%d%d%d%d%d", &vid.wallmode, &vid.monmode, &vid.axes, &musicvolume, &vid.framelimit, &gl, &vid.want_antialias);
   vid.usingGL = gl;
-  if(vid.antialias == 0) vid.antialias = AA_VERSION | AA_LINES | AA_LINEWIDTH;
-  if(vid.antialias == 1) vid.antialias = AA_NOGL | AA_VERSION | AA_LINES | AA_LINEWIDTH | AA_FONT;
+  if(vid.want_antialias == 0) vid.want_antialias = AA_VERSION | AA_LINES | AA_LINEWIDTH;
+  if(vid.want_antialias == 1) vid.want_antialias = AA_NOGL | AA_VERSION | AA_LINES | AA_LINEWIDTH | AA_FONT;
   double jps = vid.joypanspeed;
   err=fscanf(f, "%d%d%d%lf%d%d", &vid.joyvalue, &vid.joyvalue2, &vid.joypanthreshold, &jps, &aa, &vid.flashtime);
   vid.joypanspeed = jps;
diff --git a/system.cpp b/system.cpp
index 942cc744..02e444d5 100644
--- a/system.cpp
+++ b/system.cpp
@@ -1575,7 +1575,7 @@ EX void initAll() {
   firstland0 = firstland;
   
   // initlanguage();
-  initgraph();
+  initialize_all();
 #if CAP_SAVE
   loadsave();
   if(IRREGULAR) irr::auto_creator();
@@ -1603,7 +1603,7 @@ EX void finishAll() {
 #endif
   clearMemory();
 #if !ISMOBILE
-  cleargraph();
+  quit_all();
 #endif
   
   achievement_close();  
diff --git a/vr.cpp b/vr.cpp
index 15258e66..3de44faf 100644
--- a/vr.cpp
+++ b/vr.cpp
@@ -755,6 +755,8 @@ EX void start_vr() {
     return;
     }  
   else println(hlog, "VR initialized successfully");
+  
+  apply_screen_settings();
 
   string driver = GetTrackedDeviceString( vr::k_unTrackedDeviceIndex_Hmd, vr::Prop_TrackingSystemName_String );
   string display = GetTrackedDeviceString( vr::k_unTrackedDeviceIndex_Hmd, vr::Prop_SerialNumber_String );