update button toggled state, apply it to emoji reactions

src/App.scss

@@ -117,7 +117,9 @@ button {
     color: $fallback--text;
     color: var(--btnToggledText, $fallback--text);
     background-color: $fallback--fg;
-    background-color: var(--btnToggled, $fallback--fg)
+    background-color: var(--btnToggled, $fallback--fg);
+    box-shadow: 0px 0px 4px 0px rgba(255, 255, 255, 0.3), 0px 1px 0px 0px rgba(0, 0, 0, 0.2) inset, 0px -1px 0px 0px rgba(255, 255, 255, 0.2) inset;
+    box-shadow: var(--buttonPressedShadow);
   }
 
   &.danger {

src/components/emoji_reactions/emoji_reactions.vue

@@ -4,7 +4,7 @@
       v-for="(reaction) in emojiReactions"
       :key="reaction.emoji"
       class="emoji-reaction btn btn-default"
-      :class="{ 'picked-reaction': reactedWith(reaction.emoji) }"
+      :class="{ 'toggled': reactedWith(reaction.emoji) }"
       @click="emojiOnClick(reaction.emoji, $event)"
     >
       <span class="reaction-emoji">{{ reaction.emoji }}</span>
@@ -40,10 +40,4 @@
   }
 }
 
-.picked-reaction {
-  border: 1px solid var(--link, $fallback--link);
-  margin-left: -1px; // offset the border, can't use inset shadows either
-  margin-right: calc(0.5em - 1px);
-}
-
 </style>

src/components/style_switcher/style_switcher.vue

@@ -460,6 +460,19 @@
               :label="$t('settings.text')"
             />
             <ContrastRatio :contrast="previewContrast.btnDisabledText" />
+            <h4>{{ $t('settings.style.advanced_colors.toggled') }}</h4>
+            <ColorInput
+              v-model="btnToggledColorLocal"
+              name="btnToggledColor"
+              :fallback="previewTheme.colors.btnToggled"
+              :label="$t('settings.background')"
+            />
+            <ColorInput
+              v-model="btnToggledTextColorLocal"
+              name="btnToggledTextColor"
+              :fallback="previewTheme.colors.btnToggledText"
+              :label="$t('settings.text')"
+            />
           </div>
           <div class="color-item">
             <h4>{{ $t('settings.style.advanced_colors.tabs') }}</h4>