chore: final adjustments

packages/instant/src/components/asset_amount_input.tsx

@@ -40,7 +40,7 @@ export class AssetAmountInput extends React.Component<AssetAmountInputProps, Ass
                     <ScalingAmountInput
                         {...rest}
                         startWidthCh={3.5}
-                        endWidthCh={5}
+                        endWidthCh={4}
                         maxFontSizePx={this.props.startingFontSizePx}
                         onChange={this._handleChange}
                         onFontSizeChange={this._handleFontSizeChange}

packages/instant/src/components/scaling_input.tsx

@@ -34,12 +34,12 @@ export interface ScalingInputSnapshot {
     inputWidthPx: number;
 }
 // This is a magic number that was determined experimentally.
-const percentageToReduceByPerCharacter = 0.15;
+const percentageToReduceByPerCharacter = 0.18;
 export class ScalingInput extends React.Component<ScalingInputProps, ScalingInputState> {
     public static defaultProps = {
         onChange: util.boundNoop,
         onFontSizeChange: util.boundNoop,
-        maxLength: 10,
+        maxLength: 9,
     };
     public state = {
         fixedWidthInPxIfExists: undefined,