Resolve "Couleur download results button"

Closes #91 (closed)

src/app/search/components/result/download.component.html

@@ -10,29 +10,29 @@
         <div class="col">
             <div class="row justify-content-around">
                 <div class="col-auto mb-2">
-                    <a [href]="getUrl('csv')" class="btn btn-lg btn-block btn-success">
-                        <img src="assets/logo_csv.png" class="dl-btn" alt="Download results in CSV fornt">
+                    <a [href]="getUrl('csv')" class="btn btn-lg btn-block dl-btn">
+                        <span [inlineSVG]="'assets/logo_csv.svg'" title="Download results in CSV format"></span>
                     </a>
                 </div>
                 <div class="col-auto mb-2">
-                    <a [href]="getUrl('ascii')" target="_blank" class="btn btn-lg btn-block btn-success">
-                        <img src="assets/logo_ascii.png" class="dl-btn" alt="Download results in ASCII formt">
+                    <a [href]="getUrl('ascii')" target="_blank" class="btn btn-lg btn-block dl-btn">
+                        <span [inlineSVG]="'assets/logo_ascii.svg'" title="Download results in ASCII format"></span>
                     </a>
                 </div>
                 <div *ngIf="getDataset().vo" class="col-auto mb-2">
-                    <button class="btn btn-lg btn-block btn-success">
-                        <img src="assets/logo_vo.png" class="dl-btn" alt="Download results in VO format">
+                    <button class="btn btn-lg btn-block dl-btn">
+                        <span [inlineSVG]="'assets/logo_vo.svg'" title="Download results in VO format"></span>
                     </button>
                 </div>
                 <div class="w-100 d-block d-lg-none"></div>
                 <div class="col-auto mb-2">
-                    <button class="btn btn-lg btn-block btn-success">
-                        <img src="assets/logo_spectra.png" class="dl-btn" alt="Download SPECTRA archive">
+                    <button class="btn btn-lg btn-block dl-btn">
+                        <span [inlineSVG]="'assets/logo_spectra.svg'" title="Download SPECTRA archive"></span>
                     </button>
                 </div>
                 <div class="col-auto mb-2">
-                    <button class="btn btn-lg btn-block btn-success">
-                        <img src="assets/logo_stamp.png" class="dl-btn" alt=" Download STAMP archive">
+                    <button class="btn btn-lg btn-block dl-btn">
+                        <span [inlineSVG]="'assets/logo_stamp.svg'" title="Download STAMP archive"></span>
                     </button>
                 </div>
             </div>