Fancy new buttons and more consistent colors

src/components/Button.tsx

@@ -0,0 +1,69 @@
+import React, { useCallback, useState }  from 'react';
+import { SvgProps } from 'react-native-svg';
+import { 
+    PressableProps, 
+} from 'react-native';
+import { THEME_COLOR } from 'CONSTANTS';
+import styled, { css } from 'styled-components/native';
+import useDefaultStyles from './Colors';
+
+interface ButtonProps extends PressableProps {
+    icon?: React.FC<SvgProps>;
+    title: string;
+}
+
+interface PressableStyleProps {
+    active: boolean;
+}
+
+const BaseButton = styled.Pressable<PressableStyleProps>`
+    padding: 16px;
+    border-radius: 8px;
+    flex-direction: row;
+    align-items: center;
+    justify-content: center;
+    flex-grow: 1;
+
+    ${props => props.active && css`
+        background-color: ${THEME_COLOR};
+    `}
+`;
+
+const ButtonText = styled.Text<{ active?: boolean }>`
+    color: ${THEME_COLOR};
+    font-weight: 600;
+
+    ${props => props.active && css`
+        color: white;
+    `}
+`;
+
+export default function Button(props: ButtonProps) {
+    const { icon: Icon, title, ...rest } = props;
+    const defaultStyles = useDefaultStyles();
+    const [isPressed, setPressed] = useState(false);
+    const handlePressIn = useCallback(() => setPressed(true), []);
+    const handlePressOut = useCallback(() => setPressed(false), []);
+
+    return (
+        <BaseButton
+            {...rest}
+            onPressIn={handlePressIn}
+            onPressOut={handlePressOut}
+            active={isPressed}
+            style={[ defaultStyles.button, props.style ]}
+        >
+            {Icon && 
+                <Icon
+                    width={12}
+                    height={12}
+                    fill={isPressed ? '#fff' : THEME_COLOR}
+                    style={{ 
+                        marginRight: 8,
+                    }} 
+                />
+            }
+            <ButtonText active={isPressed}>{title}</ButtonText>
+        </BaseButton>
+    );
+}