An IntelliJ IDEA Live Plugin to change the window icon to something more useful. (LivePlugin: https://github.com/dkandalov/live-plugin)

import com.intellij.ide.plugins.PluginUtil

import java.awt.*

import javax.imageio.*

import com.intellij.openapi.project.* import com.intellij.openapi.wm.* import com.intellij.openapi.wm.impl.* import sun.misc.*

import java.awt.image.BufferedImage

import static liveplugin.PluginUtil.invokeLaterOnEDT import static liveplugin.PluginUtil.registerProjectListener

invokeLaterOnEDT { IdeFrameImpl.frames.each { Frame frame -> if (frame instanceof IdeFrameImpl) { def project = frame.getProject() println("frame found $frame$project") setIdeaWindowIcon(project, frame, getIdentifyingLetters(project)) } } registerProjectListener("icon-changer-live", new ProjectManagerListener() { @Override void projectOpened(Project project) { invokeLaterOnEDT { setIdeaWindowIcon(project, getIdentifyingLetters(project)) } } }) }

static def setIdeaWindowIcon(Project project, IdeFrameImpl frame = findFrameForProject(project), String overlayText) { if (frame == null) { return } def moreThanTwoChars = overlayText.length() > 2 def img = toBufferedImage(frame.getIconImage()) def g = img.createGraphics() g.color = Color.BLACK g.fillRect(5, 5, 20, 16) g.color = Color.WHITE g.font = new Font("Consolas", Font.BOLD, moreThanTwoChars ? 13 : 15) g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF) g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON) g.drawString(overlayText, moreThanTwoChars ? 5 : 6, moreThanTwoChars ? 14 : 16) frame.setIconImage(img) }

static String getIdentifyingLetters(Project project, int i = 0) { if (project == null) { return "???" } def prjName = project.name if (i >= Constants.identLettersSplitRegexes.length) { return prjName.substring(0, Math.min(3, prjName.length())) } def regex = Constants.identLettersSplitRegexes[i] def split = prjName.split(regex) - "" if (split.length >= 3) { return split[0].substring(0, 1) + split[1].substring(0, 1) + split[2].substring(0, 1) } else if (split.length == 2) { return split[0].substring(0, 1) + split[1].substring(0, 1) // } else if (split.length == 1) { // return split[0].substring(0, 1) } else { return getIdentifyingLetters(project, i + 1) } }

static IdeFrame findFrameForProject(Project project) { for (Frame frame : IdeFrameImpl.frames) { if (frame instanceof IdeFrame && frame.getProject() == project) { return frame } } return null }

/**

• Converts a given Image into a BufferedImage

• @param img The Image to be converted

• @return The converted BufferedImage */ public static BufferedImage toBufferedImage(Image img) { if (img instanceof BufferedImage) { return (BufferedImage) img; }

  // Create a buffered image with transparency BufferedImage bimage = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_ARGB);

  // Draw the image on to the buffered image Graphics2D bGr = bimage.createGraphics(); bGr.drawImage(img, 0, 0, null); bGr.dispose();

  // Return the buffered image return bimage; }

class Constants { static String ideaIconWithBar_base64_28px = "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" static String[] identLettersSplitRegexes = ["[a-z0-9_-]+", "[0-9_-]+"]

}