improved ladder display

src/components/chart/ChartOrder.vue

@@ -17,7 +17,7 @@
         </template>
         <template #prepend-inner>
           <v-btn variant="text" text="max" class="px-0" size="small"
-                 :disabled="!maxAmount" @click="setMax"/>
+                 :disabled="!maxAmount || order.amountIsTokenA===order.buy && !co.price" @click="setMax"/>
         </template>
         <template #append-inner>
           <v-btn :text="order.amountIsTokenA?co.baseToken.s:co.quoteToken.s+' worth'"