feat(design) : update send button to match new background

Author: ganfra

libraries/textcomposer/impl/src/main/kotlin/io/element/android/libraries/textcomposer/components/SendButton.kt

@@ -18,10 +18,8 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.draw.drawWithCache
 import androidx.compose.ui.geometry.Offset
-import androidx.compose.ui.graphics.BlendMode
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.LinearGradientShader
-import androidx.compose.ui.graphics.RadialGradientShader
 import androidx.compose.ui.graphics.ShaderBrush
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
@@ -39,6 +37,7 @@ import io.element.android.libraries.ui.strings.CommonStrings
 /**
  * Send button for the message composer.
  * Figma: https://www.figma.com/design/G1xy0HDZKJf5TCRFmKb5d5/Compound-Android-Components?node-id=1956-37575&node-type=frame&m=dev
+ * Temporary Figma : https://www.figma.com/design/Ni6Ii8YKtmXCKYNE90cC67/Timeline-(new)?node-id=2274-39944&m=dev
  */
 @Composable
 internal fun SendButton(
@@ -105,30 +104,17 @@ private fun buttonBackgroundModifier() = Modifier.drawWithCache {
             from = Offset(0f, 0f),
             to = Offset(0f, height),
             colors = listOf(
-                Color(0xFF0BC491),
-                Color(0xFF0467DD),
-            )
-        )
-    )
-    val radialGradientBrush = ShaderBrush(
-        RadialGradientShader(
-            center = Offset(height / 2f, height / 2f),
-            radius = height / 2f,
-            colors = listOf(
-                Color(0xFF0BC491),
-                Color(0xFF0467DD),
+                Color(0xFF79DD98),
+                Color(0xFF0DBD8B),
+                Color(0xFF128585),
+                Color(0xFF24446B),
             )
         )
     )
     onDrawBehind {
         drawRect(
             brush = verticalGradientBrush,
         )
-        drawRect(
-            brush = radialGradientBrush,
-            alpha = 0.4f,
-            blendMode = BlendMode.Overlay,
-        )
     }
 }