alpha colors

assets/sass/_theme/dependencies/splide.sass

@@ -25,7 +25,7 @@
             padding: 0
             width: 48px
             &::before
-                background-color: rgba($link-color, 0.3)
+                background-color: alphaColor($link-color, 0.3)
                 border-radius: 50%
                 content: ""
                 display: block
@@ -35,7 +35,7 @@
                 width: 10px
             &:hover
                 &::before
-                    background-color: rgba($link-color, 0.6)
+                    background-color: alphaColor($link-color, 0.6)
             &.is-active
                 &::before
                     background-color: $link-color

assets/sass/_theme/design-system/search.sass

@@ -85,7 +85,7 @@
         &__form
             @include icon(search-inline, after)
             &::after
-                color: rgba(var(--color-text-alt), .6)
+                color: alphaColor(var(--color-text-alt), .6)
                 position: fixed
                 pointer-events: none
                 z-index: 9

assets/sass/_theme/utils/normalize.sass

@@ -7,7 +7,7 @@
     user-select: none
     &:active,
     &:focus
-        box-shadow: inset 0 0 0 0.25rem rgba(var(--color-text), 0.25)
+        box-shadow: inset 0 0 0 0.25rem alphaColor(var(--color-text), 0.25)
         // TODO : vérifier si l'outline 0 est vraiment nécessaire
         // outline: 0