diff --git a/config.cpp b/config.cpp
index 3b70e532..2853f08e 100644
--- a/config.cpp
+++ b/config.cpp
@@ -287,9 +287,11 @@ void initConfig() {
   addsaver(forecolor, "color:foreground");
   addsaver(bordcolor, "color:borders");
   addsaver(ringcolor, "color:ring");
+  addsaver(vid.multiplier_ring, "mult:ring", 1);
   addsaver(modelcolor, "color:model");
   addsaver(periodcolor, "color:period");
   addsaver(stdgridcolor, "color:stdgrid"); 
+  addsaver(vid.multiplier_grid, "mult:grid", 1);
   addsaver(dialog::dialogcolor, "color:dialog");
   for(auto& p: colortables)
     savecolortable(p.second, s0+"canvas"+p.first);
@@ -1673,11 +1675,17 @@ void show_color_dialog() {
   dialog::addColorItem(XLAT("projection boundary"), ringcolor, 'r');
   dialog::add_action([] () { dialog::openColorDialog(ringcolor); dialog::dialogflags |= sm::SIDE; });
 
+  dialog::addSelItem(XLAT("boundary width multiplier"), fts(vid.multiplier_ring), 'R');
+  dialog::add_action([] () { dialog::editNumber(vid.multiplier_ring, 0, 10, 1, 1, XLAT("boundary width multiplier"), ""); });
+
   dialog::addColorItem(XLAT("projection background"), modelcolor, 'c');
   dialog::add_action([] () { dialog::openColorDialog(modelcolor); dialog::dialogflags |= sm::SIDE; });
 
   dialog::addColorItem(XLAT("standard grid color"), stdgridcolor, 'g');
   dialog::add_action([] () { vid.grid = true; dialog::openColorDialog(stdgridcolor); dialog::dialogflags |= sm::SIDE; });
+  
+  dialog::addSelItem(XLAT("grid width multiplier"), fts(vid.multiplier_grid), 'G');
+  dialog::add_action([] () { dialog::editNumber(vid.multiplier_grid, 0, 10, 1, 1, XLAT("grid width multiplier"), ""); });
 
   dialog::addSelItem(XLAT("brightness behind the sphere"), fts(backbrightness), 'i');
   dialog::add_action([] () { dialog::editNumber(backbrightness, 0, 1, .01, 0.25, XLAT("brightness behind the sphere"), 
@@ -1953,9 +1961,15 @@ int read_color_args() {
   else if(argis("-ring")) {
     PHASEFROM(2); shift(); ringcolor = arghex();
     }
+  else if(argis("-ringw")) {
+    PHASEFROM(2); shift_arg_formula(vid.multiplier_ring);
+    }
   else if(argis("-stdgrid")) {
     PHASEFROM(2); shift(); stdgridcolor = arghex();
     }
+  else if(argis("-gridw")) {
+    PHASEFROM(2); shift_arg_formula(vid.multiplier_grid);
+    }
   else if(argis("-period")) {
     PHASEFROM(2); shift(); periodcolor = arghex();
     }
@@ -2201,6 +2215,8 @@ unordered_map<string, ld&> params = {
   #if CAP_SHOT
   {"gamma", shot::gamma},
   {"fade", shot::fade},
+  {"mgrid", vid.multiplier_grid},
+  {"mring", vid.multiplier_ring},
   #endif
   };
 
diff --git a/graph.cpp b/graph.cpp
index 84f191cc..6e738590 100644
--- a/graph.cpp
+++ b/graph.cpp
@@ -4516,6 +4516,7 @@ void radar_grid(cell *c, const transmatrix& V) {
 void draw_grid_at(cell *c, const transmatrix& V) {
   dynamicval<ld> lw(vid.linewidth, vid.linewidth);
 
+  vid.linewidth *= vid.multiplier_grid;
   vid.linewidth *= cgi.scalefactor;
 
   // sphere: 0.3948
diff --git a/hyper.h b/hyper.h
index 77a25ee6..9c40b52d 100644
--- a/hyper.h
+++ b/hyper.h
@@ -264,6 +264,8 @@ struct videopar {
   #define AA_MULTI     64
   #define AA_MULTI16   128 // not configurable
   ld linewidth;
+  
+  ld multiplier_grid, multiplier_ring;
 
   int joyvalue, joyvalue2, joypanthreshold;
   ld joypanspeed;
diff --git a/hypgraph.cpp b/hypgraph.cpp
index cbfd3c3a..5c05e5e9 100644
--- a/hypgraph.cpp
+++ b/hypgraph.cpp
@@ -1471,6 +1471,7 @@ color_t modelcolor = 0;
 #if CAP_QUEUE
 void draw_model_elements() {
 
+  dynamicval<ld> lw(vid.linewidth, vid.linewidth * vid.multiplier_ring);
   switch(pmodel) {
   
     case mdRotatedHyperboles: {
@@ -1595,6 +1596,8 @@ void draw_boundary(int w) {
 
   if(w == 1) return;
 
+  dynamicval<ld> lw(vid.linewidth, vid.linewidth * vid.multiplier_ring);
+
   color_t lc = ringcolor;
   color_t fc = modelcolor;
   PPR p = PPR::OUTCIRCLE;