diff --git a/src/lv_core/lv_disp.h b/src/lv_core/lv_disp.h
index 304715435..e095d8caf 100644
--- a/src/lv_core/lv_disp.h
+++ b/src/lv_core/lv_disp.h
@@ -145,6 +145,15 @@ static inline void lv_scr_load(lv_obj_t * scr)
 #define LV_VER_RES lv_disp_get_ver_res(lv_disp_get_default())
 #endif
 
+
+/**
+ * Same as Android's DIP. (Different name is chosen to avoid mistype between LV_DPI and LV_DIP)
+ * 1 dip is 1 px on a 160 DPI screen
+ * 1 dip is 2 px on a 320 DPI screen
+ * https://stackoverflow.com/questions/2025282/what-is-the-difference-between-px-dip-dp-and-sp
+ */
+#define LV_DPX(n)   LV_MATH_MAX(((LV_DPI * (n)) / 160), 1)
+
 #ifdef __cplusplus
 } /* extern "C" */
 #endif
diff --git a/src/lv_core/lv_style.h b/src/lv_core/lv_style.h
index 50d9911fa..9828fc83e 100644
--- a/src/lv_core/lv_style.h
+++ b/src/lv_core/lv_style.h
@@ -733,14 +733,6 @@ static inline lv_res_t lv_style_list_get_data_ptr(lv_style_list_t * list, lv_sty
  */
 #define LV_STYLE_CREATE(name, copy_p) static lv_style_t name; lv_style_init(&name); lv_style_copy(&name, copy);
 
-/**
- * Same as Android's DIP. (Different name is chosen to avoid mistype between LV_DPI and LV_DIP)
- * 1 dip is 1 px on a 160 DPI screen
- * 1 dip is 2 px on a 320 DPI screen
- * https://stackoverflow.com/questions/2025282/what-is-the-difference-between-px-dip-dp-and-sp
- */
-#define LV_DPX(n)   LV_MATH_MAX(((LV_DPI * (n)) / 160), 1)
-
 
 #ifdef __cplusplus
 } /* extern "C" */
diff --git a/src/lv_draw/lv_draw_rect.c b/src/lv_draw/lv_draw_rect.c
index a53bdbf50..ba1bbd0ab 100644
--- a/src/lv_draw/lv_draw_rect.c
+++ b/src/lv_draw/lv_draw_rect.c
@@ -92,11 +92,11 @@ void lv_draw_rect(const lv_area_t * coords, const lv_area_t * clip, lv_draw_rect
     draw_shadow(coords, clip, dsc);
 #endif
 
-    draw_outline(coords, clip, dsc);
     draw_bg(coords, clip, dsc);
     draw_pattern(coords, clip, dsc);
     draw_border(coords, clip, dsc);
     draw_value(coords, clip, dsc);
+    draw_outline(coords, clip, dsc);
 
     LV_ASSERT_MEM_INTEGRITY();
 }
diff --git a/src/lv_hal/lv_hal_disp.c b/src/lv_hal/lv_hal_disp.c
index 2f8a6d53f..92f629919 100644
--- a/src/lv_hal/lv_hal_disp.c
+++ b/src/lv_hal/lv_hal_disp.c
@@ -64,6 +64,7 @@ void lv_disp_drv_init(lv_disp_drv_t * driver)
     driver->buffer           = NULL;
     driver->rotated          = 0;
     driver->color_chroma_key = LV_COLOR_TRANSP;
+    driver->dpi = LV_DPI;
 
 #if LV_ANTIALIAS
     driver->antialiasing = true;
@@ -265,6 +266,36 @@ bool lv_disp_get_antialiasing(lv_disp_t * disp)
 #endif
 }
 
+/**
+ * Get the DPI of the display
+ * @param disp pointer to a display (NULL to use the default display)
+ * @return dpi of the display
+ */
+uint32_t lv_disp_get_dpi(lv_disp_t * disp)
+{
+    if(disp == NULL) disp = lv_disp_get_default();
+    if(disp == NULL) return 1;  /*Do not return 0 because it might be a divider*/
+    return disp->driver.dpi;
+}
+
+/**
+ * Get the size category of the display based on it's hor. res. and dpi.
+ * @param disp pointer to a display (NULL to use the default display)
+ * @return LV_DISP_SIZE_SMALL/MEDIUM/LARGE/EXTRA_LARGE
+ */
+lv_disp_size_t lv_disp_get_size_category(lv_disp_t * disp)
+{
+    if(disp == NULL) disp = lv_disp_get_default();
+    if(disp == NULL) return LV_DISP_SIZE_SMALL;
+
+    uint32_t w = lv_disp_get_hor_res(disp) * 10 / disp->driver.dpi;
+
+    if(w < LV_DISP_SMALL_LIMIT) return LV_DISP_SIZE_SMALL;
+    if(w < LV_DISP_MEDIUM_LIMIT) return LV_DISP_SIZE_MEDIUM;
+    if(w < LV_DISP_LARGE_LIMIT) return LV_DISP_SIZE_LARGE;
+    else return LV_DISP_SIZE_EXTRA_LARGE;
+}
+
 /**
  * Call in the display driver's `flush_cb` function when the flushing is finished
  * @param disp_drv pointer to display driver in `flush_cb` where this function is called
diff --git a/src/lv_hal/lv_hal_disp.h b/src/lv_hal/lv_hal_disp.h
index 66e36b7ec..95868d4ad 100644
--- a/src/lv_hal/lv_hal_disp.h
+++ b/src/lv_hal/lv_hal_disp.h
@@ -81,6 +81,11 @@ typedef struct _disp_drv_t {
     uint32_t screen_transp : 1;
 #endif
 
+    /** DPI (dot per inch) of the display.
+     * Set to `LV_DPI` from `lv_Conf.h` by default.
+     */
+    uint32_t dpi :10;
+
     /** MANDATORY: Write the internal buffer (VDB) to the display. 'lv_disp_flush_ready()' has to be
      * called when finished */
     void (*flush_cb)(struct _disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p);
@@ -147,6 +152,14 @@ typedef struct _disp_t {
     uint32_t last_activity_time; /**< Last time there was activity on this display */
 } lv_disp_t;
 
+
+typedef enum {
+    LV_DISP_SIZE_SMALL,
+    LV_DISP_SIZE_MEDIUM,
+    LV_DISP_SIZE_LARGE,
+    LV_DISP_SIZE_EXTRA_LARGE,
+}lv_disp_size_t;
+
 /**********************
  * GLOBAL PROTOTYPES
  **********************/
@@ -230,6 +243,13 @@ lv_coord_t lv_disp_get_ver_res(lv_disp_t * disp);
  */
 bool lv_disp_get_antialiasing(lv_disp_t * disp);
 
+/**
+ * Get the size category of the display based on it's hor. res. and dpi.
+ * @param disp pointer to a display (NULL to use the default display)
+ * @return LV_DISP_SIZE_SMALL/MEDIUM/LARGE/EXTRA_LARGE
+ */
+lv_disp_size_t lv_disp_get_size_category(lv_disp_t * disp);
+
 /**
  * Call in the display driver's `flush_cb` function when the flushing is finished
  * @param disp_drv pointer to display driver in `flush_cb` where this function is called
diff --git a/src/lv_themes/lv_theme.c b/src/lv_themes/lv_theme.c
index 3769b7bf7..66c49ecc2 100644
--- a/src/lv_themes/lv_theme.c
+++ b/src/lv_themes/lv_theme.c
@@ -53,6 +53,59 @@ lv_theme_t * lv_theme_get_act(void)
     return act_theme;
 }
 
+/**
+ * Get the small font of the theme
+ * @return pointer to the font
+ */
+const lv_font_t * lv_theme_get_font_small(void)
+{
+    return act_theme->font_small;
+}
+
+/**
+ * Get the normal font of the theme
+ * @return pointer to the font
+ */
+const lv_font_t * lv_theme_get_font_normal(void)
+{
+    return act_theme->font_normal;
+}
+
+/**
+ * Get the subtitle font of the theme
+ * @return pointer to the font
+ */
+const lv_font_t * lv_theme_get_font_subtitle(void)
+{
+    return act_theme->font_subtitle;
+}
+
+/**
+ * Get the title font of the theme
+ * @return pointer to the font
+ */
+const lv_font_t * lv_theme_get_font_title(void)
+{
+    return act_theme->font_title;
+}
+
+/**
+ * Get the primary color of the theme
+ * @return the color
+ */
+lv_color_t lv_theme_get_color_primary(void)
+{
+    return act_theme->color_primary;
+}
+
+/**
+ * Get the flags of the theme
+ * @return the flags
+ */
+uint32_t lv_theme_get_flags(void)
+{
+    return act_theme->flags;
+}
 
 void lv_theme_apply(lv_obj_t * obj, lv_theme_style_t name)
 {
diff --git a/src/lv_themes/lv_theme.h b/src/lv_themes/lv_theme.h
index b9193ac42..5698beca7 100644
--- a/src/lv_themes/lv_theme.h
+++ b/src/lv_themes/lv_theme.h
@@ -175,7 +175,43 @@ lv_style_t * lv_theme_get_style(lv_theme_style_t name);
 
 void lv_theme_apply(lv_obj_t * obj, lv_theme_style_t name);
 
-lv_style_t * lv_theme_get_style_part(lv_theme_style_t name, uint8_t part);
+
+/**
+ * Get the small font of the theme
+ * @return pointer to the font
+ */
+const lv_font_t * lv_theme_get_font_small(void);
+
+/**
+ * Get the normal font of the theme
+ * @return pointer to the font
+ */
+const lv_font_t * lv_theme_get_font_normal(void);
+
+/**
+ * Get the subtitle font of the theme
+ * @return pointer to the font
+ */
+const lv_font_t * lv_theme_get_font_subtitle(void);
+
+/**
+ * Get the title font of the theme
+ * @return pointer to the font
+ */
+const lv_font_t * lv_theme_get_font_title(void);
+
+/**
+ * Get the primary color of the theme
+ * @return the color
+ */
+lv_color_t lv_theme_get_color_primary(void);
+
+/**
+ * Get the flags of the theme
+ * @return the flags
+ */
+uint32_t lv_theme_get_flags(void);
+
 
 /**********************
  *    MACROS
diff --git a/src/lv_themes/lv_theme_material.c b/src/lv_themes/lv_theme_material.c
index bac401987..beae3b5df 100644
--- a/src/lv_themes/lv_theme_material.c
+++ b/src/lv_themes/lv_theme_material.c
@@ -191,7 +191,8 @@ static void basic_init(void)
     lv_style_set_bg_color(&scr, LV_STATE_DEFAULT, COLOR_SCR);
     lv_style_set_text_color(&scr, LV_STATE_DEFAULT, COLOR_SCR_TEXT);
     lv_style_set_value_color(&scr, LV_STATE_DEFAULT, COLOR_SCR_TEXT);
-    lv_style_set_border_post(&scr, LV_STATE_DEFAULT, true);
+    lv_style_set_text_font(&scr, LV_STATE_DEFAULT, theme.font_normal);
+    lv_style_set_value_font(&scr, LV_STATE_DEFAULT, theme.font_normal);
 
     style_init_reset(&bg);
     lv_style_set_radius(&bg, LV_STATE_DEFAULT, LV_DPX(8));
@@ -203,6 +204,7 @@ static void basic_init(void)
     lv_style_set_border_post(&bg, LV_STATE_DEFAULT, true);
     lv_style_set_text_font(&bg, LV_STATE_DEFAULT, theme.font_normal);
     lv_style_set_text_color(&bg, LV_STATE_DEFAULT, COLOR_BG_TEXT);
+    lv_style_set_value_font(&bg, LV_STATE_DEFAULT, theme.font_normal);
     lv_style_set_value_color(&bg, LV_STATE_DEFAULT, COLOR_BG_TEXT);
     lv_style_set_image_recolor(&bg, LV_STATE_DEFAULT, COLOR_BG_TEXT);
     lv_style_set_line_color(&bg, LV_STATE_DEFAULT, COLOR_BG_TEXT);
@@ -409,10 +411,10 @@ static void switch_init(void)
     lv_style_set_bg_opa(&sw_knob, LV_STATE_DEFAULT, LV_OPA_COVER);
     lv_style_set_bg_color(&sw_knob, LV_STATE_DEFAULT, LV_COLOR_WHITE);
     lv_style_set_radius(&sw_knob, LV_STATE_DEFAULT, LV_RADIUS_CIRCLE);
-    lv_style_set_pad_top(&sw_knob, LV_STATE_DEFAULT,    - LV_DPX(10));
-    lv_style_set_pad_bottom(&sw_knob, LV_STATE_DEFAULT, - LV_DPX(10));
-    lv_style_set_pad_left(&sw_knob, LV_STATE_DEFAULT,   - LV_DPX(10));
-    lv_style_set_pad_right(&sw_knob, LV_STATE_DEFAULT,  - LV_DPX(10));
+    lv_style_set_pad_top(&sw_knob, LV_STATE_DEFAULT,    - LV_DPX(8));
+    lv_style_set_pad_bottom(&sw_knob, LV_STATE_DEFAULT, - LV_DPX(8));
+    lv_style_set_pad_left(&sw_knob, LV_STATE_DEFAULT,   - LV_DPX(8));
+    lv_style_set_pad_right(&sw_knob, LV_STATE_DEFAULT,  - LV_DPX(8));
 #endif
 }
 
@@ -633,7 +635,7 @@ static void page_init(void)
 #if LV_USE_PAGE
     style_init_reset(&sb);
     lv_style_set_bg_opa(&sb, LV_STATE_DEFAULT, LV_OPA_COVER);
-    lv_style_set_bg_color(&sb, LV_STATE_DEFAULT,  (IS_LIGHT ? lv_color_hex(0xcccfd1) : lv_color_hex(0x505559)));
+    lv_style_set_bg_color(&sb, LV_STATE_DEFAULT,  (IS_LIGHT ? lv_color_hex(0xcccfd1) : lv_color_hex(0x777f85)));
     lv_style_set_radius(&sb, LV_STATE_DEFAULT, LV_RADIUS_CIRCLE);
     lv_style_set_size(&sb, LV_STATE_DEFAULT, LV_DPX(7));
     lv_style_set_pad_right(&sb, LV_STATE_DEFAULT,  LV_DPX(7));
diff --git a/src/lv_widgets/lv_led.c b/src/lv_widgets/lv_led.c
index 0376452b5..d650e13ae 100644
--- a/src/lv_widgets/lv_led.c
+++ b/src/lv_widgets/lv_led.c
@@ -214,6 +214,8 @@ static lv_design_res_t lv_led_design(lv_obj_t * led, const lv_area_t * clip_area
          * and LV_LED_BRIGHT_ON*/
         rect_dsc.shadow_width = ((ext->bright - LV_LED_BRIGHT_MIN) * rect_dsc.shadow_width) /
                                 (LV_LED_BRIGHT_MAX - LV_LED_BRIGHT_MIN);
+        rect_dsc.shadow_spread = ((ext->bright - LV_LED_BRIGHT_MIN) * rect_dsc.shadow_spread) /
+                                (LV_LED_BRIGHT_MAX - LV_LED_BRIGHT_MIN);
 
         lv_draw_rect(&led->coords, clip_area, &rect_dsc);
     }
diff --git a/src/lv_widgets/lv_msgbox.c b/src/lv_widgets/lv_msgbox.c
index 1ad7c7a1b..280a3deac 100644
--- a/src/lv_widgets/lv_msgbox.c
+++ b/src/lv_widgets/lv_msgbox.c
@@ -102,7 +102,12 @@ lv_obj_t * lv_msgbox_create(lv_obj_t * par, const lv_obj_t * copy)
 
         lv_cont_set_layout(mbox, LV_LAYOUT_COLUMN_MID);
         lv_cont_set_fit2(mbox, LV_FIT_NONE, LV_FIT_TIGHT);
-        lv_obj_set_width(mbox, LV_DPI * 2);
+        lv_coord_t fit_w = lv_obj_get_width_fit(par);
+        if(lv_disp_get_size_category(NULL) <= LV_DISP_SIZE_SMALL) {
+            lv_obj_set_width(mbox, fit_w);
+        } else {
+            lv_obj_set_width(mbox, LV_MATH_MIN(fit_w, LV_DPX(400)));
+        }
         lv_obj_align(mbox, NULL, LV_ALIGN_CENTER, 0, 0);
         lv_obj_set_event_cb(mbox, lv_msgbox_default_event_cb);
 
diff --git a/src/lv_widgets/lv_roller.c b/src/lv_widgets/lv_roller.c
index ecd7ce80c..910329d9e 100644
--- a/src/lv_widgets/lv_roller.c
+++ b/src/lv_widgets/lv_roller.c
@@ -115,7 +115,7 @@ lv_obj_t * lv_roller_create(lv_obj_t * par, const lv_obj_t * copy)
         lv_theme_apply(roller, LV_THEME_ROLLER);
         refr_height(roller);
 
-        lv_roller_set_visible_row_count(roller, 4);
+        lv_roller_set_visible_row_count(roller, 3);
     }
     /*Copy an existing roller*/
     else {
diff --git a/src/lv_widgets/lv_switch.c b/src/lv_widgets/lv_switch.c
index 0825364ef..616b56aa4 100644
--- a/src/lv_widgets/lv_switch.c
+++ b/src/lv_widgets/lv_switch.c
@@ -89,7 +89,7 @@ lv_obj_t * lv_switch_create(lv_obj_t * par, const lv_obj_t * copy)
     if(copy == NULL) {
         lv_obj_set_click(sw, true);
         lv_obj_add_protect(sw, LV_PROTECT_PRESS_LOST);
-        lv_obj_set_size(sw, 4 * LV_DPI / 10, LV_DPI / 4);
+        lv_obj_set_size(sw, LV_DPX(70), LV_DPX(40));
         lv_bar_set_range(sw, 0, 1);
 
         lv_theme_apply(sw, LV_THEME_SWITCH);