[docs] Green icons

docs/site/layouts/index.html

@@ -31,8 +31,8 @@
         </h2>
       </div>
       <div class='col-12 col-lg-4 pros-card'>
-        <img src='/images/icons/free.png' alt='Free' style='width: 5rem'>
-        <h2 class='h4'>It's free!</h2>
+        <img src='/images/icons/free-green.png' alt='Free' style='width: 5rem'>
+        <h2 class='h4 color-accent'>It's free!</h2>
         <p>
           <a href='https://waha.devlike.pro/docs/how-to/plus-version/#tiers' target='_blank'>
             <b>WAHA Core</b>
@@ -46,7 +46,7 @@
         </p>
       </div>
       <div class='col-12 col-lg-4 pros-card'>
-        <img src='/images/icons/servers.png' alt='Servers' style='width: 5rem'>
+        <img src='/images/icons/servers-green.png' alt='Servers' style='width: 5rem'>
         <h2 class='h4'>Self-hosted solution</h2>
         <p>
           <a href='https://waha.devlike.pro/docs/how-to/plus-version/#why-waha' target='_blank'>
@@ -56,7 +56,7 @@
         </p>
       </div>
       <div class='col-12 col-lg-4 pros-card'>
-        <img src='/images/icons/document.png' alt='Document' style='width: 5rem'>
+        <img src='/images/icons/document-green.png' alt='Document' style='width: 5rem'>
         <h2 class='h4'>Well documented</h2>
         <p>
           <a href='https://waha.devlike.pro/docs/overview/introduction/' target='_blank'>
@@ -67,7 +67,7 @@
     </div>
     <div class='row justify-content-center text-center'>
       <div class='col-12 col-lg-4 pros-card'>
-        <img src='/images/icons/api.png' alt='API' style='width: 5rem'>
+        <img src='/images/icons/api-green.png' alt='API' style='width: 5rem'>
         <h2 class='h4'>Language agnostic</h2>
         <p>
           Use your own favorite language - Python, JavaScript, PHP, C#, Clojure, or PowerShell.
@@ -78,7 +78,7 @@
         </p>
       </div>
       <div class='col-12 col-lg-4 pros-card'>
-        <img src='/images/icons/easy.png' alt='Easy' style='width: 5rem'>
+        <img src='/images/icons/easy-green.png' alt='Easy' style='width: 5rem'>
         <h2 class='h4'>Quick installation</h2>
         <p>
           You need to install Docker and
@@ -92,7 +92,7 @@
         </p>
       </div>
       <div class='col-12 col-lg-4 pros-card'>
-        <img src='/images/icons/checked.png' alt='Checked' style='width: 5rem'>
+        <img src='/images/icons/checked-green.png' alt='Checked' style='width: 5rem'>
         <h2 class='h4'>No blocking</h2>
         <p>
           <a href='https://waha.devlike.pro/docs/how-to/engines/' target='_blank'>