diff --git a/doc/rofi-theme.5 b/doc/rofi-theme.5
index cc7b18d5..12edc7fd 100644
--- a/doc/rofi-theme.5
+++ b/doc/rofi-theme.5
@@ -2041,6 +2041,8 @@ It supports the following keys as constraint:
 \fB\fCmax-aspect-ratio\fR:  load when aspect ratio is under value.
 .IP \(bu 2
 \fB\fCmonitor-id\fR:        The monitor id, see rofi -help for id's.
+.IP \(bu 2
+\fB\fCenabled\fR:           Boolean option to enable. Supports environment variable.
 
 .RE
 
@@ -2058,6 +2060,17 @@ It supports the following keys as constraint:
 .fi
 .RE
 
+.PP
+.RS
+
+.nf
+@media ( enabled: env(DO_LIGHT, false ) {
+
+}
+
+.fi
+.RE
+
 .SH Font Parsing
 .PP
 Rofi uses pango
diff --git a/doc/rofi-theme.5.markdown b/doc/rofi-theme.5.markdown
index 3e6b8899..fd8ff08b 100644
--- a/doc/rofi-theme.5.markdown
+++ b/doc/rofi-theme.5.markdown
@@ -1308,6 +1308,7 @@ It supports the following keys as constraint:
  * `min-aspect-ratio`   load when aspect ratio is over value.
  * `max-aspect-ratio`:  load when aspect ratio is under value.
  * `monitor-id`:        The monitor id, see rofi -help for id's.
+ * `enabled`:           Boolean option to enable. Supports environment variable.
 
 @media takes an integer number or a fraction, for integer number `px` can be added.
 
@@ -1318,6 +1319,12 @@ It supports the following keys as constraint:
 }
 ```
 
+```
+@media ( enabled: env(DO_LIGHT, false ) {
+
+}
+```
+
 
 ## Font Parsing
 
diff --git a/include/theme.h b/include/theme.h
index 6690e20f..789aa5f3 100644
--- a/include/theme.h
+++ b/include/theme.h
@@ -50,6 +50,8 @@ typedef enum {
   THEME_MEDIA_TYPE_MIN_ASPECT_RATIO,
   /** Maximum aspect ratio constraint. */
   THEME_MEDIA_TYPE_MAX_ASPECT_RATIO,
+  /** Boolean option for use with env. */
+  THEME_MEDIA_TYPE_BOOLEAN,
   /** Invalid entry. */
   THEME_MEDIA_TYPE_INVALID,
 } ThemeMediaType;
@@ -60,6 +62,7 @@ typedef enum {
 typedef struct ThemeMedia {
   ThemeMediaType type;
   double value;
+  gboolean boolv;
 } ThemeMedia;
 
 /**
diff --git a/lexer/theme-lexer.l b/lexer/theme-lexer.l
index 8ddbeee4..8edf5eea 100644
--- a/lexer/theme-lexer.l
+++ b/lexer/theme-lexer.l
@@ -178,7 +178,6 @@ WSO        [[:blank:]]*
 WORD       [[:alnum:]-]+
 WORD_ELEMENT [[:alpha:]][[:alnum:]-]*
 WORD_ENV   [[:alpha:]_][[:alnum:]_]*
-MEDIA_NAME [[:alpha:]-]+
 COLOR_NAME [[:alpha:]]+
 STRING     \"{UANYN}*\"
 STRING_LIST \"{UANYNP}*\"
@@ -291,6 +290,8 @@ MEDIA "@media"
 
 CONFIGURATION (?i:configuration)
 
+MEDIA_TYPES (monitor-id|(min|max)-(width|height|aspect-ratio)|enabled)
+
 %x INCLUDE
 %x PROPERTIES
 %x PROPERTIES_ENV
@@ -301,8 +302,12 @@ CONFIGURATION (?i:configuration)
 %x NAMESTR
 %x SECTION
 %x DEFAULTS
+/* Media section.*/
 %x MEDIA
 %x MEDIA_CONTENT
+%x MEDIA_ENV_VAR
+%x MEDIA_ENV_VAR_CONTENT
+%x MEDIA_ENV_VAR_DEFAULT
 %%
 
 %{
@@ -497,11 +502,11 @@ if ( queue == NULL ) {
 
   /* After Namestr/Classstr we want to go to state str, then to  { */
 <INITIAL,SECTION>{WHITESPACE}+	; // ignore all whitespace
-<PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT,PROPERTIES_ARRAY,PROPERTIES_ENV_VAR,PROPERTIES_VAR,MEDIA_CONTENT>{WHITESPACE}+	; // ignore all whitespace
+<PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT,PROPERTIES_ARRAY,PROPERTIES_ENV_VAR,PROPERTIES_VAR>{WHITESPACE}+	; // ignore all whitespace
 
 <SECTION>":"                      { g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) ); BEGIN(PROPERTIES); return T_PSEP; }
 <PROPERTIES>";"                   { BEGIN(GPOINTER_TO_INT ( g_queue_pop_head ( queue ))); return T_PCLOSE;}
-<PROPERTIES,PROPERTIES_ARRAY,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>(true|false)          { yylval->bval= g_strcmp0(yytext, "true") == 0; return T_BOOLEAN;}
+<PROPERTIES,PROPERTIES_ARRAY,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT,MEDIA_ENV_VAR_CONTENT,MEDIA_ENV_VAR_DEFAULT>(true|false)          { yylval->bval= g_strcmp0(yytext, "true") == 0; return T_BOOLEAN;}
 <PROPERTIES,PROPERTIES_ARRAY,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT,MEDIA_CONTENT>{PNNUMBER}\.{NUMBER}+ { yylval->fval = g_ascii_strtod(yytext, NULL); return T_DOUBLE;}
 <PROPERTIES,PROPERTIES_ARRAY,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT,MEDIA_CONTENT>{PNNUMBER}            { yylval->ival = (int)g_ascii_strtoll(yytext, NULL, 10); return T_INT;}
 <PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>{STRING}                                             { yytext[yyleng-1] = '\0'; yylval->sval = g_strcompress(&yytext[1]); return T_STRING;}
@@ -579,6 +584,25 @@ if ( queue == NULL ) {
         g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) ); BEGIN(PROPERTIES_ENV);
     }
 }
+<MEDIA_ENV_VAR>{WORD_ENV} {
+    const char *val = g_getenv(yytext);
+    if ( val ) {
+        ParseObject *top = g_queue_peek_head ( file_queue );
+        top->location = *yylloc;
+        ParseObject *po = g_malloc0(sizeof(ParseObject));
+        po->type = PT_ENV;
+        po->input_str = val;
+        po->str_len = strlen(val);
+        current = po;
+        g_queue_push_head ( file_queue, po );
+
+        yypush_buffer_state (yy_create_buffer ( 0, YY_BUF_SIZE ));
+        yylloc->first_line = yylloc->last_line = 1;
+        yylloc->first_column = yylloc->last_column = 1;
+        yylloc->filename = current->filename;
+        g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) ); BEGIN(MEDIA_ENV_VAR_CONTENT);
+    }
+}
 
 
  /**
@@ -641,7 +665,7 @@ if ( queue == NULL ) {
 <PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>{HWB}              { return T_COL_HWB;        }
 <PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>{CMYK}             { return T_COL_CMYK;       }
 
-<PROPERTIES_ENV_VAR,PROPERTIES_VAR>{S_T_PARENT_LEFT} {
+<PROPERTIES_ENV_VAR,MEDIA_ENV_VAR,PROPERTIES_VAR>{S_T_PARENT_LEFT} {
     return T_PARENT_LEFT;
 }
  /* Fluff */
@@ -655,7 +679,12 @@ if ( queue == NULL ) {
     BEGIN(PROPERTIES_ENV_VAR);
     return T_ENV_START;
 }
-<PROPERTIES_VAR,PROPERTIES_ENV_VAR>{S_T_PARENT_RIGHT} {
+<MEDIA_CONTENT>{ENV_START} {
+    g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) );
+    BEGIN(MEDIA_ENV_VAR);
+    return T_ENV_START;
+}
+<PROPERTIES_VAR,MEDIA_ENV_VAR,PROPERTIES_ENV_VAR>{S_T_PARENT_RIGHT} {
     BEGIN(GPOINTER_TO_INT(g_queue_pop_head ( queue )));
     return T_PARENT_RIGHT;
 }
@@ -664,7 +693,12 @@ if ( queue == NULL ) {
     BEGIN(PROPERTIES_VAR_DEFAULT);
     return T_COMMA;
 }
-<PROPERTIES_VAR_DEFAULT>{S_T_PARENT_RIGHT} {
+<MEDIA_ENV_VAR>{COMMA} {
+    g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) );
+    BEGIN(MEDIA_ENV_VAR_DEFAULT);
+    return T_COMMA;
+}
+<MEDIA_ENV_VAR_DEFAULT,PROPERTIES_VAR_DEFAULT>{S_T_PARENT_RIGHT} {
     // Pop 2.
     g_queue_pop_head ( queue );
     BEGIN(GPOINTER_TO_INT(g_queue_pop_head ( queue )));
@@ -725,7 +759,7 @@ if ( queue == NULL ) {
     REJECT;
 }
 
-<INITIAL,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT><<EOF>>  {
+<INITIAL,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT,MEDIA_ENV_VAR_CONTENT><<EOF>>  {
     ParseObject *po = g_queue_pop_head ( file_queue );
     if ( po ) {
         if ( po->type == PT_FILE ) {
@@ -766,15 +800,20 @@ if ( queue == NULL ) {
     BEGIN(MEDIA);
     return T_MEDIA;
 }
+<INITIAL>"\}" {
+    g_queue_pop_head ( queue );
+    BEGIN(GPOINTER_TO_INT(g_queue_pop_head ( queue )));
+    return T_BCLOSE;
+}
 
 <MEDIA>{S_T_PARENT_LEFT} {
     g_queue_push_head ( queue, GINT_TO_POINTER (YY_START) );
     BEGIN(MEDIA_CONTENT);
     return T_PARENT_LEFT;
 }
-<MEDIA_CONTENT>{MEDIA_NAME} {
+<MEDIA_CONTENT>{MEDIA_TYPES} {
     yylval->sval = g_strdup(yytext);
-    return T_STRING;
+    return T_MEDIA_TYPE;
 }
 <MEDIA_CONTENT>":" {
     return T_PSEP;
@@ -790,17 +829,14 @@ if ( queue == NULL ) {
     return T_BOPEN;
 }
 
-<INITIAL>"\}" {
-    g_queue_pop_head ( queue );
-    BEGIN(GPOINTER_TO_INT(g_queue_pop_head ( queue )));
-    return T_BCLOSE;
-}
-<MEDIA>{WHITESPACE}+	; // ignore all whitespace
 
+ /**
+  * Media defaults.
+  */
+<MEDIA,MEDIA_CONTENT,MEDIA_ENV_VAR,MEDIA_ENV_VAR_DEFAULT,MEDIA_ENV_VAR_CONTENT>{WHITESPACE}+	; // ignore all whitespace 
 
-<MEDIA,MEDIA_CONTENT>. {
+<MEDIA,MEDIA_CONTENT,MEDIA_ENV_VAR,MEDIA_ENV_VAR_DEFAULT,MEDIA_ENV_VAR_CONTENT>. {
     yytext[yyleng-1] = '\0';
-    fprintf(stderr,"found: |%s|\n", yytext);
     return T_ERROR;
 }
 
@@ -827,7 +863,7 @@ if ( queue == NULL ) {
     return T_ELEMENT;
 }
 
-<PROPERTIES_ENV_VAR,PROPERTIES_VAR,PROPERTIES_ARRAY,PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>. {
+<MEDIA_ENV_VAR,PROPERTIES_ENV_VAR,PROPERTIES_VAR,PROPERTIES_ARRAY,PROPERTIES,PROPERTIES_ENV,PROPERTIES_VAR_DEFAULT>. {
     yytext[yyleng-1] = '\0';
     return T_ERROR_PROPERTY;
 }
diff --git a/lexer/theme-parser.y b/lexer/theme-parser.y
index 455bc1be..494ad368 100644
--- a/lexer/theme-parser.y
+++ b/lexer/theme-parser.y
@@ -162,7 +162,8 @@ static ThemeColor hwb_to_rgb ( double h, double w, double b )
 %token <ival>     T_ERROR_ARGB_SPEC  7  "invalid argb color. Requires 8 (not 7) elements: argb:AARRGGBB."
 %token <ival>     T_INT                 "Integer number"
 %token <fval>     T_DOUBLE              "Floating-point number"
-%token <sval>     T_STRING              "UTF-8 encoded string"
+%token <sval>     T_STRING              "UTF-8 encode string"
+%token <sval>     T_MEDIA_TYPE          "Media type"
 %token <cval>     T_CHAR                "Character"
 %token <sval>     T_PROP_NAME           "property name"
 %token <colorval> T_COLOR_NAME          "Color value by name"
@@ -387,7 +388,7 @@ t_entry_list T_CONFIGURATION T_BOPEN t_config_property_list_optional T_BCLOSE {
         g_hash_table_destroy ( $4 );
     }
 }
-| t_entry_list T_MEDIA T_PARENT_LEFT T_STRING T_PSEP T_INT T_PARENT_RIGHT T_BOPEN t_entry_list T_BCLOSE {
+| t_entry_list T_MEDIA T_PARENT_LEFT T_MEDIA_TYPE T_PSEP T_INT T_PARENT_RIGHT T_BOPEN t_entry_list T_BCLOSE {
     gchar *name = g_strdup_printf("@media ( %s: %d )",$4, $6);
     ThemeWidget *widget = rofi_theme_find_or_create_name ( $1, name );
     widget->set = TRUE;
@@ -401,7 +402,7 @@ t_entry_list T_CONFIGURATION T_BOPEN t_config_property_list_optional T_BCLOSE {
     g_free ( $4 );
     g_free ( name );
 }
-| t_entry_list T_MEDIA T_PARENT_LEFT T_STRING T_PSEP T_DOUBLE T_PARENT_RIGHT T_BOPEN t_entry_list T_BCLOSE {
+| t_entry_list T_MEDIA T_PARENT_LEFT T_MEDIA_TYPE T_PSEP T_DOUBLE T_PARENT_RIGHT T_BOPEN t_entry_list T_BCLOSE {
     gchar *name = g_strdup_printf("@media ( %s: %f )",$4, $6);
     ThemeWidget *widget = rofi_theme_find_or_create_name ( $1, name );
     widget->set = TRUE;
@@ -415,7 +416,7 @@ t_entry_list T_CONFIGURATION T_BOPEN t_config_property_list_optional T_BCLOSE {
     g_free ( $4 );
     g_free ( name );
 }
-| t_entry_list T_MEDIA T_PARENT_LEFT T_STRING T_PSEP T_INT T_UNIT_PX T_PARENT_RIGHT T_BOPEN t_entry_list T_BCLOSE {
+| t_entry_list T_MEDIA T_PARENT_LEFT T_MEDIA_TYPE T_PSEP T_INT T_UNIT_PX T_PARENT_RIGHT T_BOPEN t_entry_list T_BCLOSE {
     gchar *name = g_strdup_printf("@media ( %s: %d px )",$4, $6);
     ThemeWidget *widget = rofi_theme_find_or_create_name ( $1, name );
     widget->set = TRUE;
@@ -429,6 +430,48 @@ t_entry_list T_CONFIGURATION T_BOPEN t_config_property_list_optional T_BCLOSE {
     g_free ( $4 );
     g_free ( name );
 }
+| t_entry_list T_MEDIA T_PARENT_LEFT T_MEDIA_TYPE T_PSEP T_BOOLEAN T_PARENT_RIGHT T_BOPEN t_entry_list T_BCLOSE {
+    gchar *name = g_strdup_printf("@media ( %s: %s )",$4, $6?"true":"false");
+    ThemeWidget *widget = rofi_theme_find_or_create_name ( $1, name );
+    widget->set = TRUE;
+    widget->media = g_slice_new0(ThemeMedia);
+    widget->media->type = rofi_theme_parse_media_type ( $4 );
+    widget->media->boolv = $6;
+    for ( unsigned int i = 0; i < $9->num_widgets; i++ ) {
+        ThemeWidget *d = $9->widgets[i];
+        rofi_theme_parse_merge_widgets(widget, d);
+    }
+    g_free ( $4 );
+    g_free ( name );
+}
+| t_entry_list T_MEDIA T_PARENT_LEFT T_MEDIA_TYPE T_PSEP T_ENV_START T_PARENT_LEFT T_BOOLEAN T_COMMA T_BOOLEAN T_PARENT_RIGHT T_PARENT_RIGHT T_BOPEN t_entry_list T_BCLOSE {
+    gchar *name = g_strdup_printf("@media ( %s: %s )",$4, $8?"true":"false");
+    ThemeWidget *widget = rofi_theme_find_or_create_name ( $1, name );
+    widget->set = TRUE;
+    widget->media = g_slice_new0(ThemeMedia);
+    widget->media->type = rofi_theme_parse_media_type ( $4 );
+    widget->media->boolv = $8;
+    for ( unsigned int i = 0; i < $14->num_widgets; i++ ) {
+        ThemeWidget *d = $14->widgets[i];
+        rofi_theme_parse_merge_widgets(widget, d);
+    }
+    g_free ( $4 );
+    g_free ( name );
+}
+| t_entry_list T_MEDIA T_PARENT_LEFT T_MEDIA_TYPE T_PSEP T_ENV_START T_PARENT_LEFT T_COMMA T_BOOLEAN T_PARENT_RIGHT T_PARENT_RIGHT T_BOPEN t_entry_list T_BCLOSE {
+    gchar *name = g_strdup_printf("@media ( %s: %s )",$4, $9?"true":"false");
+    ThemeWidget *widget = rofi_theme_find_or_create_name ( $1, name );
+    widget->set = TRUE;
+    widget->media = g_slice_new0(ThemeMedia);
+    widget->media->type = rofi_theme_parse_media_type ( $4 );
+    widget->media->boolv = $9;
+    for ( unsigned int i = 0; i < $13->num_widgets; i++ ) {
+        ThemeWidget *d = $13->widgets[i];
+        rofi_theme_parse_merge_widgets(widget, d);
+    }
+    g_free ( $4 );
+    g_free ( name );
+}
 ;
 
 t_config_property_list_optional
diff --git a/source/theme.c b/source/theme.c
index 11bd0509..83556c2f 100644
--- a/source/theme.c
+++ b/source/theme.c
@@ -1532,6 +1532,15 @@ static void rofi_theme_parse_process_conditionals_int(workarea mon,
         }
         break;
       }
+      case THEME_MEDIA_TYPE_BOOLEAN: {
+        if (widget->media->boolv) {
+          for (unsigned int x = 0; x < widget->num_widgets; x++) {
+            rofi_theme_parse_merge_widgets(rwidget, widget->widgets[x]);
+          }
+        }
+        break;
+      }
+
       default: {
         break;
       }
@@ -1625,6 +1634,9 @@ ThemeMediaType rofi_theme_parse_media_type(const char *type) {
   if (g_strcmp0(type, "max-aspect-ratio") == 0) {
     return THEME_MEDIA_TYPE_MAX_ASPECT_RATIO;
   }
+  if (g_strcmp0(type, "enabled") == 0) {
+    return THEME_MEDIA_TYPE_BOOLEAN;
+  }
   return THEME_MEDIA_TYPE_INVALID;
 }