I like data - especially graphs. They make it easy to see at a glance what's most important to you. In bunq, users can get a balance graph by adding the relevant widget. However, when multiple graphs are added, it can be difficult to decipher which (sub)account is which just by looking at the graph.
What's the problem?
It's difficult to tell at a glance which balance or total balance widget corresponds to which subaccount. You have to hold the widget and click on 'Included subaccounts'. This makes it difficult to see what's going on at a glance.
How to solve it?
Simple. Sub-accounts already have colours, use them for the graphs and for the Total Balance widget. If my main account is orange, make the graph for it orange. If I have a savings account that is blue, make the graph for it blue.
The total balance widget is pink already - so if all the sub-accounts are selected, choose pink. Then make the exact same change to the total balance widget as you did to the graphs where if you only have a blue sub-account selected, go for blue, etc.
So, what if you have multiple subaccounts selected, but it isn't all of your subaccounts - so it wouldn't go pink, and the colour of either of the subaccounts wouldn't be appropriate?
Less simple. I thought about asking a user (right after trying to add the widget) to choose a custom colour for it, so that they could recognise it immediately. An alternative option is "combining" the colours. For example, if you have a blue subaccount and a red one, it would become some shade of purple/pink.
Oh, and while we are making changes to the widgets...
Maybe it makes sense that the option 'Hide Balance' is also an option when holding the Total Balance widget. You currently can't, even though hiding your balance DOES affect this widget. Lil confusing :)
Quick concept
Below is a picture where I've added multiple graphs. One of my main account, one of the Savings account. I've made a quick concept design on how it would look like when there are 2 colours instead of just the shade of orange. As you can see, it's hopefully more distinguishable.