Index: gc_lang/fr/webext/content_scripts/panel_tf.css
==================================================================
--- gc_lang/fr/webext/content_scripts/panel_tf.css
+++ gc_lang/fr/webext/content_scripts/panel_tf.css
@@ -81,24 +81,30 @@
     text-align: center;
     cursor: pointer;
 }
 
 #grammalecte_tf_reset {
-    background-color: hsl(210, 100%, 50%);
+    background-color: hsl(210, 50%, 50%);
     color: hsl(210, 0%, 100%);
 }
+#grammalecte_tf_reset:hover {
+    background-color: hsl(210, 50%, 40%);
+}
 #grammalecte_tf_progressbar {
     width: 400px;
 }
 #grammalecte_tf_time_res {
     width: 60px;
     padding: 5px 10px;
 }
 #grammalecte_tf_apply {
-    background-color: hsl(120, 100%, 50%);
+    background-color: hsl(120, 50%, 50%);
     color: hsl(150, 0%, 100%);
 }
+#grammalecte_tf_apply:hover {
+    background-color: hsl(120, 50%, 40%);
+}
 
 #grammalecte_progressbarbox {
     display: inline-block;
     padding: 10px 20px;
 }

Index: gc_lang/fr/webext/content_scripts/panel_tf.js
==================================================================
--- gc_lang/fr/webext/content_scripts/panel_tf.js
+++ gc_lang/fr/webext/content_scripts/panel_tf.js
@@ -69,13 +69,13 @@
             xColumn2.appendChild(xStruct);
             xOptions.appendChild(xColumn1);
             xOptions.appendChild(xColumn2);
             // Actions
             let xActions = createNode("div", {id: "grammalecte_tf_actions"});
-            let xDefaultButton = createNode("div", {id: "grammalecte_tf_reset", textContent: "Par défaut", className: "grammalecte_button", style: "background-color: hsl(210, 50%, 50%)"});
+            let xDefaultButton = createNode("div", {id: "grammalecte_tf_reset", textContent: "Par défaut", className: "grammalecte_button"});
             xDefaultButton.addEventListener("click", () => { this.reset(); });
-            let xApplyButton = createNode("div", {id: "grammalecte_tf_apply", textContent: "Appliquer", className: "grammalecte_button", style: "background-color: hsl(180, 50%, 50%)"});
+            let xApplyButton = createNode("div", {id: "grammalecte_tf_apply", textContent: "Appliquer", className: "grammalecte_button"});
             xApplyButton.addEventListener("click", () => { this.saveOptions(); this.apply(); });
             xActions.appendChild(xDefaultButton);
             xActions.appendChild(createNode("progress", {id: "grammalecte_tf_progressbar"}));
             xActions.appendChild(createNode("span", {id: "grammalecte_tf_time_res", textContent: "…"}));
             xActions.appendChild(xApplyButton);