Blue means one thing here: the range you are looking at.
The value chart is a row of thin gray bars, and only the selected date range fills in blue. You read the period that matters and keep the months around it as context.
The phone carries the same chart above the holdings list. Each coin gets its own small bar chart between the name and the amount, so you can scan the whole portfolio for movement without opening a single coin.
Trading screens get busy fast. This one stays light and calm, so the numbers lead: total value, realized and unrealized P&L and open positions, all on one screen.
A calculator that runs by itself is a clever way to show the product without asking anyone to read. Watching a price turn into an invoice explains the value instantly.
Login page idea design
A playful visual concept where the character literally “arms” himself depending on the strength of the password.
As the user creates a stronger password, the character progressively equips himself with more powerful protection and armor. The stronger the password, the better prepared and more protected he becomes.
The idea turns password security into a simple and engaging visual metaphor , instead of showing abstract security levels, the user can immediately see how their password makes the character stronger and safer.